[Amsler, M.L., Ramonell, C.G. & Toniolo, H.A., 2005. Morphologic changes in the Parana River channel (Argentina) in the light of the climate variability during the 20th century. Geomorphology 70, 257-278.10.1016/j.geomorph.2005.02.008]Open DOISearch in Google Scholar
[Ashley, G.M. & Hamilton, T.D., 1993. Fluvial response to Late Quaternary climatic fluctuations, central Kobuk Valley, NW Alaska. Journal of Sedimentary Petrology 63, 814-827.10.1306/D4267C12-2B26-11D7-8648000102C1865D]Search in Google Scholar
[Balwierz, Z., Goździk, J. & Marciniak, B., 2008. Geneza misy jeziornej i warunki środowiskowe akumulacji limniczno-bagiennej w interglacjale mazowieckim w rowie Kleszczowa (środkowa Polska) [The origin of a lake basin and environmental conditions of lacustrine- boggy depositon in the Kleszczów Graben (central Poland) during the Mazovian Interglacial]. Biuletyn Państwowego Instytutu Geologicznego 428, 3-22.]Search in Google Scholar
[Baraniecka, M.D., 1991. Section Różce against main sections of preglacial deposits in southern Mazowsze. Przegląd Geologiczny 39, 651-665.]Search in Google Scholar
[Baraniecka, M.D. & Sarnacka, Z., 1971. Stratygrafia czwartorzędu i paleogeografia dorzecza Widawki [Quaternary stratigraphy and palaeogeography of Widawka catchment]. Biuletyn Instytutu Geologicznego 254, 157-270.]Search in Google Scholar
[Beechie, T.J., Liermann, M., Pollock, M.M., Baker, S. & Davies, J., 2006. Channel pattern and river-floodplain dynamics in forested mountain river systems. Geomorphology 78, 124-141.10.1016/j.geomorph.2006.01.030]Search in Google Scholar
[Biernat, S., 1971. Budowa geologiczna i ukształtowanie podłoża kenozoiku w rejonie Bełchatowa [Cenozoic geology and substrate morphology in Bełchatów area]. Biuletyn Instytutu Geologicznego 254, 37-46.]Search in Google Scholar
[Bridge, J.S., 2003. Rivers and Floodplains. Forms, Processes, and Sedimentary Record. Blackwell Science (Oxford), 1-491.]Search in Google Scholar
[Brierley, G.J., 1996. Channel morphology and element assemblages: a constructivist approach to facies modelling. [In:] P.A. Carling & M.R. Dawson (Eds): Advances in Fluvial Dynamics and Stratigraphy. Wiley & Sons Ltd., 263-298.]Search in Google Scholar
[Brodzikowski, K., 1987. Charakterystyka oraz interpretacja paleogeograficzna osadów Formacji Chojny [Lithology and palaeogeographical interpretation of Chojny Formation]. [In:] Czwartorzęd rejonu Bełchatowa. II Sympozjum. Plejstoceńskie serie rzeczne i jeziorne oraz bieżące kierunki badań [2nd Symposium ‚Quaternary of Bełchatów region’. Pleistocene fluvial and lacustrine series - current researches], Warszawa - Wrocław, 47-62.]Search in Google Scholar
[Bruj, M. & Krysiak, Z., 2009. Struktury glacitektoniczne w osadach plejstoceńskich kopalni węgla brunatnego Bełchatów [Glaciotectonic structures in Pleistocene deposits of the Bełchatów brown coal open pit]. Prace Państwowego Instytutu Geologicznego 194, 7-26.]Search in Google Scholar
[Bujak, Ł., Woronko, B., Winter, H., Marcinkowski, B., Werner, T., Stachowicz-Rybka, R., Żarski, M., Woźniak, P.P. & Rosowiecka, O., 2016. A new stratigraphic position of some Early Pleistocene deposits in central Poland. Geological Quarterly 60, 238-251.10.7306/gq.1269]Search in Google Scholar
[Burge, L.M. & Lapointe, M.F., 2005. Understanding the temporal dynamics of the wandering Renous River, New Brunswick, Canada. Earth Surface Processes & Landforms 30, 1227-1250.10.1002/esp.1196]Search in Google Scholar
[Cordier, S., Frechen, M. & Harmand, D. 2014. Dating fluvial erosion: fluvial response to climate change in the Moselle catchment (France, Germany) since the Late Saalian. Boreas 43, 450-468.10.1111/bor.12057]Open DOISearch in Google Scholar
[Czarnecki, L. & Kuszneruk, J., 1993. Struktury paleoosuwiskowe odsłniete w KWB Bełchatów [Mass movement structures in the Bełchatów brown-coal mine]. Przegląd Geologiczny 41, 841-844.]Search in Google Scholar
[Czarnecki, L., Frankowski, R. & Ślusarczyk, G., 1992. Syntetyczny profil litostratygraficzny utworów trzeciorzędowych złoża „Bełchatów” dla potrzeb Bazy danych geologicznych [Synthetic lithostratigraphic profile of ‘Bełchatów’ Tertiary deposits for the Base of Geological Data]. Górnictwo Odkrywkowe 34, 103-111.]Search in Google Scholar
[Cailleux, A., 1942. Les actions éoliennes périglaciaires en Europe. Memoir Société Géologique de France 21, 46, 176 pp.]Search in Google Scholar
[Donders, T.H., Kloosterboer van Hoeve, M.L., Westerhoff, W., Verreussel R.M.C.H. & Lotter, A.F., 2007. Late Neogene continental stages in NW Europe revisited. Earth-Science Reviews 85, 161-186.10.1016/j.earscirev.2007.06.004]Search in Google Scholar
[Farrell, K.M., 2001. Geomorphology, facies architecture, and high-resolution, non-marine sequence stratigraphy in avulsion deposits, Cumberland Marshes, Saskatchewan. Sedimentary Geology 139, 93-150.10.1016/S0037-0738(00)00150-0]Search in Google Scholar
[Gao, C., Boreham, S., Preece, R.C., Gibbard, P.L. & Briant, R.M., 2007. Fluvial response to rapid climate change during the Devensian (Weichselian) Lateglacial in the River Great Ouse, S England, UK. Sedimentary Geology 202, 193-210.10.1016/j.sedgeo.2007.02.004]Search in Google Scholar
[Gibling, M.R. & Rust, B.R., 1993. Alluvial ridge-and-swale topography: a case study from the Morien Group of Atlantic Canada. International Association of Ssedimentologists, Spec. Publ. 17, 133-150.10.1002/9781444303995.ch11]Search in Google Scholar
[Gotowała, R. & Hałuszczak, A., 2002. The Late Alpine structural development of the Kleszczów Graben (Central Poland) as a result of reactivation of the pre-existing, regional dislocations. EGU Stephan Mueller Special Publication Series 1, Copernicus Publications (Katlenburg-Lindau), 137-150.10.5194/smsps-1-137-2002]Search in Google Scholar
[Goździk, J., 1973. Geneza i pozycja stratygraficzna struktur peryglacjalnych w środkowej Polsce [Origin and stratigraphical position of periglacial structures in Middle Poland]. Acta Geographica Lodziensia 31, 117 pp.]Search in Google Scholar
[Goździk, J., 1980. Zastosowanie morfoskopii i graniformametrii do badań osadów kopalni węgla brunatnego “Bełchatów” [Analyses of sand-grain morphology in researches of deposits in the ‘Bełchatów’ browncoal mine]. Studia Regionalne 4, 101-114.]Search in Google Scholar
[Goździk, J., 1986. Structures de fentes à remplissage primaire sableux du Vistulien en Pologne et leur importance palèogèographique. Biuletyn Peryglacjalny 31, 71-105.]Search in Google Scholar
[Goździk, J., 1992. Prewarciańskie osady eoliczne w stropie rzecznych utworów formacji “Chojny” w kopalni “Bełchatów” [Pre-Warthian aeolian deposits in the top of Chojny Formation in Bełchatów mine]. Acta Geographica Lodziensia 63, 7-19.]Search in Google Scholar
[Goździk, J., 1995. Vistulian sediments in the Bełchatów open cast mine, central Poland. Quaternary Studies in Poland 13, 13-26.]Search in Google Scholar
[Goździk, J., 1999. Sediments of periglacial environment from Pleistocene deposits in Bełchatów open-cast mine. [In:] ‘Periglacial environments: past, present and future’. Łódź Periglacial Symposium, 75-82.]Search in Google Scholar
[Goździk, J., 2001. Stratygrafia i paleogeografia osadów czwartorzędowych w środkowo-zachodniej części kopalni Bełchatów z wykorzystaniem morfoskopii ziarn kwarcowych [Stratigraphy and palaeogeography of Quaternary sediments in central-western part of the mine Bełchatów with the use of quartz grains analysis]. [In:] E. Mycielska-Dowgiałło (Ed.): Eolizacja osadów jako wskaźnik stratygraficzny czwartorzędu [Aeolization of sediments as an indicator of Quaternary stratigraphy]. Warsaw University Press, Warszawa, 93-124.]Search in Google Scholar
[Goździk, J. & Krzyszkowski, D., 1987. Osady formacji “Piaski” w rejonie kopalni węgla brunatnego “Bełchatów” [Deposits of Piaski Formation in Bełchatów brown-coal mine area]. [In:] Czwartorzęd rejonu Bełchatowa. II Sympozjum. Plejstoceńskie serie rzeczne i jeziorne oraz bieżące kierunki badań [2nd Symposium ‚Quaternary of Bełchatów region’. Pleistocene fluvial and lacustrine series - current researches], Warszawa - Wrocław: 63-68.]Search in Google Scholar
[Goździk, J. & Zieliński, T., 1996. Sedymentologia vistuliańskich osadów małych dolin środkowej Polski - przykład z kopalni Bełchatów [Sedimentology of Vistulian deposits of small valleys in central Poland: a case study from Bełchatów]. Biuletyn Państwowego Instytutu Geologicznego 373, 67-77.]Search in Google Scholar
[Goździk, J., Kenig, K. & Skórzak, A., 2010. Zmiany kształtu ziaren kwarcowych oraz składu mineralnego piaszczystych osadów miocenu, pliocenu i niższego czwartorzędu w rowie Kleszczowa [Changes in the shape of quartz grains and mineral composition of Miocene, Pliocene and Lower Quaternary sand deposits in the Kleszczów Graben]. Biuletyn Państwowego Instytutu Geologicznego 438, 33-50.]Search in Google Scholar
[Hałuszczak, A., 1982. Zarys budowy geologicznej czwartorzędu w rejonie Piaski oraz Buczyna-Chojny. I Sympozjum „Czwartorzęd regionu Bełchatowa” [Outline of Quaternary geology in Piaski and Buczyna-Chojny regions. 1th Symposium ‚Quaternary of Bełchatów region’], Warszawa - Wrocław, 14-35.]Search in Google Scholar
[Hałuszczak, A., 1987. Zarys litostratygrafii trzeciorzedu rejonu odkrywki Belchatów. II Sympozjum. Plejstoceńskie serie rzeczne i jeziorne oraz bieżące kierunki badań [Outline of Tertiary lithostratigraphy in Bełchatów mine area. 2nd Symposium ‘Quaternary of Bełchatów region’. Pleistocene fluvial and lacustrine series - current researches], Warszawa - Wrocław, 199-205.]Search in Google Scholar
[Hałuszczak, A., 2004. Cenozoic dynamics of the Dębina Salt Dome, Kleszczów Grabem, inferred from structural features of the Tertiary-Quaternary cover. Annales Societatis Geologorum Poloniae 74, 311-318.]Search in Google Scholar
[Harms, J.C. & Fahnestock, R.K., 1965. Stratification, bedforms, and flow phenomena (with an example from the Rio Grande). [In:] G.V. Middleton (Ed.), Primary Sedimentary Structures and their Hydrodynamic Interpretation. Society of Economic Paleontologists and Mineralogists, Spec. Publ. 12, 84-115.10.2110/pec.65.08.0084]Search in Google Scholar
[Head, M.J. & Gibbard, P.L., 2015. Early Middle Pleistocene transitions: Linking terrestrial and marine realms. Quaternary International 290,7-46.10.1016/j.quaint.2015.09.042]Search in Google Scholar
[Hjellbakk, A., 1997. Facies and fluvial architecture of a high-energy braided river: the Upper Proterozoic Seglodden Member, Varanger Peninsula, N Norway. Sedimentary Geology 114, 131-161.10.1016/S0037-0738(97)00075-4]Search in Google Scholar
[Kasse, C., Huijzer, A.S., Krzyszkowski, D., Bohncke, S.J.P. & Coope, G.R., 1998. Weichselian Late Pleniglacial and Late-glacial depositional environments, Coleoptera and periglacial climatic records from central Poland (Bełchatów). Journal of Quaternary Science 13, 455-469.10.1002/(SICI)1099-1417(1998090)13:5<455::AID-JQS398>3.0.CO;2-T]Open DOISearch in Google Scholar
[Kemna, H.A. & Westerhoff, W.E., 2007. Remarks on palynlogy-based chronostratigraphical subdivision of Pliocene terrestial deposits in NW-Europe. Quaternary International 164-165, 184-196.10.1016/j.quaint.2006.10.017]Search in Google Scholar
[Kossowski, L., 1974. Budowa geologiczna złoża węgla brunatnego Bełchatów ze szczególnym uwzględnieniem tektoniki podłoża [Geology of Bełchatów brown-coal deposit with account of basement tectonics]. Górnictwo Odkrywkowe 16, 336-341.]Search in Google Scholar
[Krumbein, W.C., 1941. Measurement and geological record significance of shape and roundness of sedimentary particles. Journal of Sedimentary Petrology 11, 64-72.10.1306/D42690F3-2B26-11D7-8648000102C1865D]Search in Google Scholar
[Krzyszkowski, D., 1990. Middle and Late Weichselian stratigraphy and palaeoenvironments in central Poland. Boreas 19, 333-350.10.1111/j.1502-3885.1990.tb00138.x]Open DOISearch in Google Scholar
[Krzyszkowski, D., 1991. The Middle Pleistocene polyinterglacial Czyżów Formation in the Kleszczów Graben (central Poland): stratigraphy and paleogeography. Folia Quaternaria 61/62, 5-58.]Search in Google Scholar
[Krzyszkowski, D., 1992. Quaternary tectonics in the Kleszczów Graben (Central Poland): a study based on sections from the ‘Bełchatów’ outcrop. Quaternary Studies in Poland 11, 65-90.]Search in Google Scholar
[Krzyszkowski, D., 1993. Neogene fluvial sedimentation in the Kleszczów Graben, Central Poland. Journal of Sedimentary Petrology 6, 204-217.]Search in Google Scholar
[Krzyszkowski, D., 1994. A revision of the stratigraphic position of „Wola Grzymalina Series” in The Kleszczów Grben (Central Poland). Quaternary Studies in Poland 12, 5-19.]Search in Google Scholar
[Krzyszkowski, D., 1996. Climatic control on Quaternary fluvial sedimentation in the Kleszczów Graben, central Poland. Quaternary Science Reviews 15, 315-333.10.1016/0277-3791(95)00040-2]Open DOISearch in Google Scholar
[Krzyszkowski, D. & Nita, M., 1995. The intra-Saalian interstadial floras of the Chojny Formation of Belchatów, central Poland. Journal of Quaternary Science 10, 225-240.10.1002/jqs.3390100304]Search in Google Scholar
[Krzyszkowski, D. & Szuchnik, A., 1995. Pliocene-Pleistocene boundary in the Kleszczów Graben at Bełchatów, Central Poland. Journal of Quaternary Science 10, 45-58.10.1002/jqs.3390100106]Search in Google Scholar
[Krzyszkowski, D. & Winter, H., 1996. Stratigraphic position and sedimentary features of the Tertiary Uppermost Fluvial Member in the Kleszczów Graben, Central Poland. Annales Societatis Geologorum Poloniae 66, 17-33.]Search in Google Scholar
[Krzyszkowski, D., Böttger, T., Junge, F.W., Kuszell, T. & Nowicki, J., 1996. Ferdynandovian Interglacial climate reconstructions from pollen successions, stable- isotope composition and magnetic susceptibility. Boreas 25, 283-296.10.1111/j.1502-3885.1996.tb00645.x]Open DOISearch in Google Scholar
[Lewin, J. & Gibbard, P.L., 2010. Quaternary river terraces in England: Forms, sediments and processes. Geomorphology 120, 293-311.10.1016/j.geomorph.2010.04.002]Search in Google Scholar
[Lewiński, J., 1928. Utwory preglacjalne i glacjalne Piotrkowa i okolic [Preglacial and glacial deposits of Piotrków and surroundings]. Sprawozdania z posiedzeń Towarzystwa Naukowego Warszawskiego, Wydz. III 21, 49-66.]Search in Google Scholar
[Łanczont, M., Bogucki, A., Mroczek, P., Zieliński, P., Jacyszyn, A., Pidek, A.I., Urban, D., Kulesza, P. & Hołub, B., 2010. Zapis interglacjalno-glacjalnych cykli w sekwencji osadowej w Krużykach nad Dniestrem (Wschodnie Podkarpacie) [Interglacial-glacial cycles recorded in the deposit sequence at Kruzhyky on the Dniester River (E Carpathian Foreland)]. Annales UMCS B, 65, 37-56.10.2478/v10066-011-0052-6]Search in Google Scholar
[Makowska, A., 2015. Budowa geologiczna i stratygrafia formacji preglacjalnej południowego Mazowsza nad dolna Pilicą [The geological structure and stratigraphy of the preglacial formation in the southern Mazovia region, lower Pilica River area]. Prace Państwowego Instytutu Geologicznego 202, 7-52.]Search in Google Scholar
[Marks, L., Dzierżek, J., Janiszewski, R., Kaczorowski, J., Lindner, L., Majecka, A., Makos, M., Szymanek, M., Tołoczko-Pasek, A. & Woronko, B., 2016. Quaternary stratigraphy and paleogeography of Poland. Acta Geologica Polonica 66, 403-427.10.1515/agp-2016-0018]Search in Google Scholar
[Miall, A.D., 1978. Lithofacies types and vertical profile models in braided rivers: a summary. [In:] A.D. Miall (Ed.), Fluvial Sedimentology. Canadian Society of Petroleum Geologists Memoir 5, 597-604.]Search in Google Scholar
[Miall, A.D., 1996. The Geology of Fluvial Deposits. Sedimentary Facies, Basin Analysis, and Petroleum Geology. Springer (Berlin), 582 pp.]Search in Google Scholar
[Murton, J.B., Worsley, P. & Gozdzik, J., 2000. Sand veins and wedges in cold aeolian environments. Quaternary Science Reviews 19, 899-922.10.1016/S0277-3791(99)00045-1]Open DOISearch in Google Scholar
[Nanson, G.C. & Knighton, A.D., 1996. Anabranching rivers: their cause, character and classification. Earth Surface Processes Landforms 21, 217-239.10.1002/(SICI)1096-9837(199603)21:3<217::AID-ESP611>3.0.CO;2-U]Search in Google Scholar
[Perez-Arlucea, M., Mack, G. & Leeder, M., 2000. Reconstructing the ancestral (Plio-Pleistocene) Rio Grande in its active tectonic setting, S Rio Grande rift, New Mexico, USA. Sedimentology 47, 701-720.10.1046/j.1365-3091.2000.00323.x]Open DOISearch in Google Scholar
[Pękala, A. & Hycnar, E., 2011. Minerały ciężkie w strefie kontaktu mezozoik/kenozoik w złożu węgla brunatnego Bełchatów [Heavy minerals in the Bełchatów lignite deposit from the Mesozoic/Cenozoic contact zone]. Biuletyn Państwowego Instytutu Geologicznego 444, 171-176.]Search in Google Scholar
[Pisarska-Jamroży, M., Machowiak, K. & Krzyszkowski, D., 2010. Sedimentation style of a Pleistocene kame terrace from the Western Sudety Mountains, S Poland. Geologos 16, 101-110.10.2478/v10118-009-0008-8]Search in Google Scholar
[Premik, J., 1930. Badania nad dyluwium województwa łódzkiego. cz. I. O utworach preglacjalnych, glacjalnych i interglacjalnych w dorzeczu środkowej Warty, Widawki i Prosny [Studies on dilluvium of the Łódź district. Part I. Preglacial, glacial and interglacial deposits of Warta, Widawka and Prosna catchments]. Roczniki Polskiego Towarzystwa Geologicznego 6, 382-392.]Search in Google Scholar
[Rice, S.P., Church, M., Wooldridge, C.L. & Hickin, E.J., 2009. Morphology and evolution of bars in a wandering gravel-bed river; lower Fraser river, B.C., Canada. Sedimentology 56, 709-736.10.1111/j.1365-3091.2008.00994.x]Search in Google Scholar
[Saunderson, H.C. & Jopling, A.V., 1980. Paleohydraulics of a tabular, cross-stratified sand in the Brampton esker, Ontario. Sedimentary Geology 25, 169-188.10.1016/0037-0738(80)90039-1]Open DOISearch in Google Scholar
[Stuchlik, L. & Szynkiewicz, A., 1998. General geological situation and palynological investigations of the brown coal deposits. [In:] Tertiary-Quaternary (Pleistocene) floras of Bełchatów (Middle Poland) and several localities in South-Western Poland. 5th European Paleobotanical and Palynological Conference. Guide to Excursion 2, 6-11.]Search in Google Scholar
[Stuchlik, L., Szynkiewicz, A., Łańcucka-Środoń, M. & Zastawniak, E., 1990. Wyniki dotychczasowych badań paleobotanicznych trzeciorzędowych węgli brunatnych złoża „Bełchatów” [Results of palaeobotanical studies on Tertiary brown-coal deposits ‚Bełchatów’]. Acta Paleobotanica 30, 295-305.]Search in Google Scholar
[Szmidt, A., 2012. Wpływ podłoża na rzeźbę i osady czwartorzędu na obszarze województwa łódzkiego w świetle wybranych metod GIS [Relationship of basement to landforms and deposits on Łódź Province area]. Thesis Łódź University, 225 pp.]Search in Google Scholar
[Szynkiewicz, A., 2000. Wiek węgla brunatnego na tle pozycji geologicznej badanych próbek (KWB „Bełchatow” [Age of the brown coal deposits from Bełchatów lignite mine (central Poland)]. Przegląd Geologiczny 48, 1038-1045.]Search in Google Scholar
[Therrien, F., 2006. Depositional environments and fluvial system changes in the dinosaur-bearing Sanpetru Fm. (Late Cretaceous, Romania): post-orogenic sedimentation in an active extensional basin. Sedimentary Geology 192, 183-205.10.1016/j.sedgeo.2006.04.002]Search in Google Scholar
[Vandenberghe, J., 2008. The fluvial cycle at cold-warmcold transitions in lowland regions: A refinement of theory. Geomorphology 98, 275-284.10.1016/j.geomorph.2006.12.030]Open DOISearch in Google Scholar
[Villard, P.V. & Church, M., 2005. Bar and dune development during a freshet: Fraser River Estuary, B.C., Canada. Sedimentology 52, 737-756.10.1111/j.1365-3091.2005.00721.x]Open DOISearch in Google Scholar
[Winter, H., 2015. Dynamika zmian klimatycznych w pliocenie i plejstocenie dolnym oraz granica neogen/czwartorzęd w osadach południowego Mazowsza (środkowa Polska) [The dynamics of climatic changes in the Pliocene and Lower Pleistocene, and the Neogene/Quaternary transition in sediments from S Mazovia (central Poland) on the basis of palynological data]. Prace Państwowego Instytutu Geologicznego 202, 53-106.]Search in Google Scholar
[Zagwijn, W.H., 1960. Aspects of the Pliocene and Early Pleistocene vegetation in the Netherlands. Mededelingen Geologische Stichting C-III, 1, 1-78.]Search in Google Scholar
[Zagwijn, W.H., 1992. The beginning of the Ice Age in Europe and its major subdivisions. Quaternary Science Reviews 11, 583-591.10.1016/0277-3791(92)90015-Z]Open DOISearch in Google Scholar
[Zieliński, P., Sokołowski, R.J., Woronko, B., Jankowski, M., Fedorowicz, S., Zaleski, I., Molodkov, A. & Weckwerth, P., 2015. The depositional conditions of the fluvio-aeolian succession during the last climate minimum based on the examples from Poland and NW Ukraine. Quaternary International 386, 30-41.10.1016/j.quaint.2014.08.013]Search in Google Scholar
[Zieliński, T. & Goździk, J., 2001. Palaeoenvironmental interpretation of a Pleistocene alluvial succession in central Poland: sedimentary facies analysis as a tool for palaeoclimatic inferences. Boreas 30, 240-253.10.1080/030094801750424157]Open DOISearch in Google Scholar
[Zieliński, T. & Pisarska-Jamroży, M., 2012. Jakie cechy litologiczne warto kodować, a jakie nie? [Which features of deposits should be included in the code and which not?]. Przegląd Geologiczny 60, 387-397.]Search in Google Scholar