[Anonīms (2004). Pļavu un lauksaimniecības zemju un sugu monitorings [Monitoring of grasslands and agricultural lands]. Rīga: Latvijas Dabas fonds, 30.-33. lpp. (in Latvian).]Search in Google Scholar
[Anonīms (2006). Dabas liegums "Krēmeri": dabas aizsardzības plāns [Nature Conservancy Area "Krēmeri": Plan for Nature Protection]. Rīga: Grupa 93, 26 lpp. (in Latvian).]Search in Google Scholar
[Anonīms (2007). Dabas liegums "Ilgas": dabas aizsardzības plāns [Nature conservancy area "Ilgas": Nature protection plan]. Rīga: Estonian, Latvian and Lithuanian Environment. 31 lpp. (in Latvian).]Search in Google Scholar
[Bickis, J., Rasiņš, A. (1946). Latvijas augu noteicējs [Key of Latvian Plants]. Rīga: Latvijas Valsts izdevniecība. 343 lpp. (in Latvian).]Search in Google Scholar
[Cornelius, R. (1990). The strategies of Solidago canadensis L. in relation to urban habitats. III. Conformity to habitat dynamics. Acta Oecol., 11(3), 301-310.]Search in Google Scholar
[Dancza, I., Botta-Dukát, Z. (2001). Historical and recent data on the distribution of North American Solidago species (S. gigantea Ait. and S. canadensis L.) in Hungary. In Proceedings of the 6th International Conference Ecology and Management of Alien Plant Invasions, 12-15 September 2001, Loughborough University, UK. http://www.lboro.ac.uk/research/cens/invasives/6emapi_oral_abs.htm [cited in 1 Nov 2007]. http://www.lboro.ac.uk/research/cens/invasives/6emapi_oral_abs.htm]Search in Google Scholar
[Forman, J. (2003). The introduction of American plant species into Europe: issues and consequences. In Child, L. E., Brock, J. H., Brundu, G., Prach, K., Pyšek, P., Wade, P. M., Williamson, M. (eds.). Plant Invasions: Ecological Threats and Management Solutions (pp. 17-39). Leiden: Backhuys Publishers.]Search in Google Scholar
[Gassman, A., Weber, E. (2005). Solidago canadensis. In Wittenberg, R. (ed.). An Inventory of Alien Species and Their Threat to Biodiversity and Economy in Switzerland. CABI Bioscience Switzerland Centre report to the Swiss Agency for Environment, Forests and Landscape (pp. 413-414). Delemont.]Search in Google Scholar
[Guzikowa, M., Maycock, P. F. (1986). The invasion and expansion of three North American species of goldenrod (Solidago canadensis L. sensu lato, S. gigantea Ait. S. graminifolia (L.) Salisb.) in Poland. Acta Soc. Bot. Polon., 55, 367-384.10.5586/asbp.1986.034]Search in Google Scholar
[Güsewell, S., Jakobs, G., Weber, E. (2006). Native and introduced populations of Solidago gigantea differ in shoot production but not in leaf traits or litter decomposition. Funct. Ecol., 20, 575-584.10.1111/j.1365-2435.2006.01141.x]Search in Google Scholar
[Harnett, D. C., Bazzaz, F. A. (1983). Physiological integration among interclonal ramets in Solidago canadensis. Ecology, 64(4), 779-788.10.2307/1937201]Search in Google Scholar
[Henderson, S., Dawson, T. P., Whittaker, R. J. (2006) Progress in invasive plants research. Progr. Phys. Geogr., 30(1), 25-46.10.1191/0309133306pp468ra]Search in Google Scholar
[Hodkinson, D. J., Thompson, K. (1997). Plant dispersal: The role of man. J. Appl. Ecol., 34, 1484-1496.10.2307/2405264]Search in Google Scholar
[Ieviņa, S. (1964). Ziemciešu puķu asortimenta dinamika Latvijas PSR teritorijā laikā no 1805. līdz 1940. gadam [Dynamics of wintergreen assortment in the Latvian SSR in a period from 1805 to 1940]. In Daiļdārzniecība 5 (129.-146. lpp). Rīga: Latvijas PSR Zinātņu akadēmijas izdevniecība (in Latvian).]Search in Google Scholar
[Jakobs, G., Weber, E., Edwards, P. J. (2004). Introduced plants of the invasive Solidago gigantea (Asteraceae) are larger and grow denser than conspecifics in the native range. Divers. Distrib., 10, 11-19.10.1111/j.1472-4642.2004.00052.x]Search in Google Scholar
[Lacey, W. S. (1957). A comparison of the spread of Galinsoga parviflora and G. ciliata in Britain. In Lousley, J. E. (Ed.) Progress in the Study of the British Flora (pp. 109-115). London: Botanical Society of the British Isles.]Search in Google Scholar
[Lohmeyer, W., Sukopp, H. (1992). Agriophyten in der Vegetation Mitteleuropas. Schriftenreihe für Vegetationskunde, 25, 1-185.]Search in Google Scholar
[Mack, R. N. (2000). Assessing the extent, status and dynamism of plant invasions: Current and emerging approaches. In Mooney, H. A, Hobbs, R. J. (eds.). Invasive Species in a Changing World (pp. 141-168). Washington D. C.: Island Press.]Search in Google Scholar
[Mandák, B., Pyðek, P., Bímová, K. (2004). History of the invasion and distribution of Reynoutria taxa in the Czech Republic: A hybrid spreading faster than its parents. Preslia (Prague) 76, 15-64.]Search in Google Scholar
[Müller, N., Okuda, S. (1998). Invasion of alien plants in floodplains—a comparison of Europe and Japan. In Starfinger, U., Ewards, K., Kowarik, I., Williamson, M. (eds.) Plant Invasions: Ecological Mechanisms and Human Response (pp. 321-332). Leiden: Backhuys Publishers.]Search in Google Scholar
[Pētersone, A. (1959). Kurvjziežu dzimta - Compositae (Vaill.) Adans. [Daisy family - Compositae (Vaill.) Adans.] In Galenieks, P. (ed.), Latvijas PSR flora. 4. sēj. (410-411. lpp.). Rīga: Latvijas Valsts izdevniecība, (in Latvian).]Search in Google Scholar
[Pyšek, P., Prach, K. (1995). Invasion dynamics of Impatiens glandulifera—a century of spreading reconstructed. Biol. Conserv., 74, 41-18.10.1016/0006-3207(95)00013-T]Search in Google Scholar
[Pyšek, P., Sádlo, J., Mandák, B. (2002). Catalogue of alien plants of the Czech Republic. Preslia (Prague), 74, 97-186.]Search in Google Scholar
[Tokarska-Guzik, B. (2003). The expansion of some alien plant species (neophytes) in Poland. In Child, L. E., Brock, J. H., Prach, K., Pyšek, P., Wade, P. M., Williamson, M. (eds.) Plant invasions: Ecological threats and management solutions (pp. 147-167). Leiden: Backhuys Publishers.]Search in Google Scholar
[Walck, J. L., Baskin, J. M., Baskin, C. C. (1999). Relative competitive abilities and growth characteristics of a narrowly endemic and geographically widespread Solidago species (Asteraceae). Amer. J. Bot., 86(6), 820-828.10.2307/2656703]Search in Google Scholar
[Weber, E. (1998). The dynamics of plant invasions: A case study of three exotic goldenrod species (Solidago L.) in Europe. J. Biogeogr., 25, 147-154.10.1046/j.1365-2699.1998.251119.x]Search in Google Scholar
[Weber, E. (2000). Biological flora of Central Europe: Solidago altissima L. Flora, 195, 123-134.10.1016/S0367-2530(17)30960-X]Search in Google Scholar
[Weber, E. (2001). Current and potential ranges of three exotic goldenrods (Solidago) in Europe. Conserv. Biol., 15(1), 122-128.10.1111/j.1523-1739.2001.99424.x]Search in Google Scholar
[Weber, E., Schmid, B. (1998). Latitudinal population differentiation in two species of Solidago (Asteraceae) introduced into Europe. Amer. J. Bot., 85(8), 1110-1121.10.2307/2446344]Search in Google Scholar
[Weber, E., Jakobs, G. (2005). Biological flora of Central Europe: Solidago gigantea Aiton. Flora, 200, 109-118.10.1016/j.flora.2004.09.001]Search in Google Scholar
[Табака, Л., Гаврилова, Г., Фатаре, И. (1988). Флора сосу∂uсmых расменuŭ Ламвuŭскоŭ ССР [Vascular flora of the Latvian SSR]. Рига, Зинатне, 194 с. (in Russian).]Search in Google Scholar