[Anderson D. G. 2006. Botrychium simplex E. Hitchcock (little grapefern): a technical conservation assessment. [Online]. USDA Forest Service, Rocky Mountain Region. Available: http://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5206970.pdf [02.08.2016].]Search in Google Scholar
[Bennert W. H., Sonneborn I. & Horn K. 2014. Die Einfache Mondraute (Botrychium simplex, Ophioglossaceae) in Deutschland. Tuexenia 34: 205-232. doi: 10.14471/2014.34.003]Search in Google Scholar
[Bezsmertna O. O. & Heluta V. P. 2013. Distribution of Botrychium multifidum (Ophioglossaceae) in Ukraine. Ukr. Bot. J. 70(6) 792-795.]Search in Google Scholar
[Blitz M., Kell S. P., Maxted N. & Lansdown R. V. 2011. European Red List of Vascular Plants. 142 pp. Luxembourg, Publications Office of the European Union.]Search in Google Scholar
[Bobrov A. E. 1974. Ophioglossaceae. In: An. A. Fedorov (ed.). Flora Partis Europaeae URSS, 1, pp. 68-72. Leningrad, Nauka.]Search in Google Scholar
[Chorney I. I., Budgak V. V., Tokaruk A. I. & Nykyrsa T. D. 2004. Genera Botrychium Sw. (Ophioglossaceae) in Bukovina flora – chorological characteristics. Scientific herald of Chernovtsy University, Collection of scientific works 194(Biology): 132-137.]Search in Google Scholar
[Chrtková A. 1988. Ophioglossaceae Agardh. In: S. Hejný & B. Slavík (eds.). Květena České Socialistické Republiky, 1, 223-228 pp. Academia, Praha.]Search in Google Scholar
[Council Directive 1992. Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora. Official Journal of the European Communities. No L 206: 7-50.]Search in Google Scholar
[Dedkov V. P. & Grishanov G. V. 2010. Krasnaya kniga Kaliningradskoĭ oblasti. 333 pp. Izdatel’stvo RGU im. I. Kanta, Kaliningrad.]Search in Google Scholar
[Didukh Ya. P. (ed.). 2000. Ecoflora of Ukraine, 1, 284 pp. Phytosociocentre, Kyiv.]Search in Google Scholar
[Didukh Ya. P. (ed.). 2009. Red data book of Ukraine. Vegetable kingdom. 912 pp. Globalconsalting, Kyiv.]Search in Google Scholar
[Dostál J. 1984. Ophioglossaceae. In: H. J. Conert, U. Hamann, W. Schultze-Motel & G. Wagenitz (eds.). Gustav Hegi Flora von Mitteleuropa, 1 (Pteridophyta), pp. 84-98. 3th ed. Verlag Paul Parey, Berlin-Hamburg.]Search in Google Scholar
[Farrar D. R. 2006. Systematics of moonworts Botrychium subgenus Botrychium. [Online]. http://www.public.iastate.edu/~herbarium/botrychium/Moonwort-Systematics-June-06.pdf [26.08.2016].]Search in Google Scholar
[Farrar D. R. 2011. Systematics and Taxonomy of Genus Botrychium. [Online]. http://www.herbarium.iastate.edu/botrychium/Moonwort-Systematics.pdf [26.08.2016].]Search in Google Scholar
[Grulich V. 2012. Red List of vascular plants of the Czech Republic: 3rd edition. Preslia 84: 631-645.]Search in Google Scholar
[http://www.floraweb.de/pflanzenarten/rotelisten.html]Search in Google Scholar
[http://sweetgum.nybg.org/science/ih/]Search in Google Scholar
[Hultén E. & Fries M. 1986. Atlas of North European vascular plants. North of the Tropic of Cancer. I-III. xvi+1172 pp. Koeltz Scientific Books, Königstein.]Search in Google Scholar
[Istomin A. V., Musatov V. Yu. & Mozhzhina T. É. 2014. Krasnaya kniga Pskovskoĭ oblasti. 544 pp. Pskovskoĭ Gosudarstvennyĭ Universitet, Pskov.]Search in Google Scholar
[Jackowiak B., Celka Z., Chmiel J., Latowski K. & Żukowski W. Red list of vascular flora of Wielkopolska (Poland). Biodiv. Res. Conserv. 5-8: 95-127.]Search in Google Scholar
[Jalas J. & Suominen J. (eds.). 1972. Altas Florae Europaeae. Distribution of Vascular Plants in Europe. 1, Pteridophyta (Psilotaceae to Azollaceae), 121 pp. The Committee for Mapping the Flora of Europe & Societas Biologica Fennica Vanamo, Helsinki.]Search in Google Scholar
[Kaźmierczakowa R., Zarzycki K. & Mirek Z. (eds.). 2014. Polish Red Data Book of Plants. Pteridophytes and flowering plants. 895 pp. Polska Akademia Nauk, Instytut Ochrony Przyrody, Kraków.]Search in Google Scholar
[Ludwig G. & Schnittler M. 1996. Rote Liste der Pflanzen Deutschlands. [Online]. https://www.bfn.de/fileadmin/MDB/documents/RoteListePflanzen.pdf [26.08.2016].]Search in Google Scholar
[Mabberley D. J. 2008. Mabberley’s Plant-book. A Portable dictionary of plants, their classification and uses. 3th ed. 1021 pp. Cambridge, Cambridge University Press.]Search in Google Scholar
[Melnik V. I. 2009. The species of the genus Botrychium Sw. (Botrychiaceae), recommended for inclusion in Red Data Book of Ukraine: geographical distribution and modern state of populations. Scientific reports of NUKMA 93: 45-53.]Search in Google Scholar
[Meusel H., Jäger E. & Weinert E. 1965. Vergleichende Chorologie der zentraleuropäischen Flora. I. Text 583 pp., Karten 258 pp. Gustav Fischer Verlag, Jena.]Search in Google Scholar
[Mosyakin S. L. & Fedoronchuk M. M. 1999. Vascular plants of Ukraine a nomenclatural checklist. 346 pp. M. G. Kholodny of Botany, National Academy of Sciences of Ukraine.]Search in Google Scholar
[Oklejewicz K., Wolanin M. & Wolanin M. N. 2015. Czerwona Księga Roślin Województwa Podkarpackiego. Zagrożone Gatunki Roślin, pp. 11-179. Stowarzyszenie na Rzecz Rozwoju i Promocji Podkarpacia “Pro Carpathia”, Rzeszów.]Search in Google Scholar
[Parfienov V. I. (ed.). 2009. Flora Belarusi. Sosudistye rasteniya,1, 264 pp. Belaruskaya Nauka, Minsk.]Search in Google Scholar
[Parnikoza I. Yu. 2002. A finding of Botrychium matricariifolium in the Middle Dnipro Region. Ukr. Bot. J. 59(6): 728-729.]Search in Google Scholar
[Parnikoza I. 2010. Modern state of Ophioglossaceae populations of Ukraine flora. Nature Protected areas creation in Ukraine 16(1): 22-27.]Search in Google Scholar
[Parnikoza I. Yu. & Tsukanova G. A. 2005. Condition of the Botrychium multifidum (S. G. Gmel.) Rupr. cenopopulations in the Kyiv territory. Ukr. Bot. J. 62(2): 289-295.]Search in Google Scholar
[Votkalchuk K. A., Sanislo Ya. P. & Bezsmertna O. O. 2014. Distribution of Botrychium matricariifolium (Ophioglossaceae) in Ukraine. Ukr. Bot. J. 71(6): 723-727.10.15407/ukrbotj71.06.723]Search in Google Scholar
[Parnikoza I. & Celka Z. 2016. An archive of the Ophioglossaceae findings in Ukraine. In: Rare plants and fungi of Ukraine and adjacent areas: implementing conservation strategies. Proceedings of the 4rd International conference. Kyiv. 16-20 May 2016, pp. 119-125.]Search in Google Scholar
[Paszkov G. P., Kaleda L. V., Logvin V. N. & Petrikov A. M. 2005. Krasnaja kniga Respubliki Belaruc’. Rasteniya. 460 pp. Izdatel’stvo Belaruskaya Éncyklapedyya im. Petrucya Brovki, Minsk.]Search in Google Scholar
[Rašomavičius V. (ed.). 2007. Red data book of Lithuania. 799 pp. Lututé, Publishing Company.]Search in Google Scholar
[Regulation 2014. Regulation of Minister of Environment of 9 October 2014 on plant species protection. Journal of Laws 2014 item 1409.]Search in Google Scholar
[Travlieiev A. P. (ed.). 2010. Chervona kniga Dnipropetrovski oblasti (Roslinni svit). 499 pp. Dnipropetrovsk.]Search in Google Scholar
[Tzvelov N. N. 2000. Manual of the vascular plants of north-wets Russia (Leningrad, Pskov and Novgorod provinces). 781 pp. St.-Petersburg State Chemical-Pharmaceutical Academy Press.]Search in Google Scholar
[Valentine D. H. & Moore D. M. 2007. Ophioglossaceae. In: T. G. Tutin, N. A. Burges, A. O. Chater, J. R. Edmondson, V. H. Heywood, D. M. Moore, D. H. Valentine, S. M. Walters & D. A. Webb (eds.). Flora Europaea, 1 (Psilotaceae to Platanaceae), pp. 8-9. Cambridge, Cambridge University Press.]Search in Google Scholar
[Vasheka O. V. & Bezsmertna O. O. 2012. Ferns Atlas of Ukrainian Flora. 161 pp. Palyvoda, Kyiv.]Search in Google Scholar
[Vetkin Yu. E., Geltman D. V., Litvinov E. M., Konechnaya G. Yu. & Mishchenko A. L. 2015. Krasnaya kniga Novgorodskoĭ oblasti. 479 pp. Izdatel’stvo Diton, Sankt-Petersburg.]Search in Google Scholar
[Wagner W. H. Jr. & Wagner F. S. 1993. Ophioglossaceae C. Agardh. Adder’s-tongue Family. In: FNA Ed. Comm. (eds.). Flora of North America, 2: 85-106. Oxford University Press, New York-Oxford.]Search in Google Scholar
[Zając M. & Zając A. 2009. The geographical elements of native flora of Poland. 94 pp. Edited by Laboratory of Computer Chorology, Institute of Botany, Jagiellonian University, Kraków.]Search in Google Scholar
[Zarzycki K. & Szeląg Z. 2006. Red list of the vascular plants in Poland. In: Z. Mirek, K. Zarzycki, W. Wojewoda & Z. Szeląg (eds.). Red list of plants and fungi in Poland, pp. 9-20. W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków.]Search in Google Scholar
[Żukowski W. 2004. Botrychium simplex E. Hitchc. Podejźrzon pojedynczy In: A. Werblan & B. Sudnik-Wójcikowska (eds.). Poradniki ochrony siedlisk i gatunków Natura 2000 – podręcznik metodyczny 9: 52-54.]Search in Google Scholar
[Żukowski W., Celka Z. & Olejnik N. 2014. EX Botrychium simplex E. Hitchc. Podejźrzon pojedynczy. In: R. Kaźmierczakowa, K. Zarzycki & Z. Mirek (eds.). Polish Red Data Book of Plants. Pteridophytes and flowering plants, wyd. III uaktualnione i rozszerzone, pp. 41-42. Polska Akademia Nauk, Instytut Ochrony Przyrody, Kraków.]Search in Google Scholar
