[1. Alagador D., Cerdeira J. O. and Araujo M. B., 2011 ‒ Dynamic selection of dispersal pathways for species persistence under climate change, Proceeding of the Global Conferences on Global Warming 11-14 July, 2011, Lisbon, Portugal.]Search in Google Scholar
[2. Anastasiu P. and Negrean G., 2006 ‒ Alien vascular plants in Dobrogea (Romania) and their impact on different types of habitats, in Plant, fungal and habitat diversity investigation and conservation, Proceedings of IV BBC - Sofia, 590-596.]Search in Google Scholar
[3. Bremer P., 2003 ‒ Some aspects of fern flora (Filicopsida) of the Netherlands, in Chandra S. and Srivastava M. (eds), Pteridology in the New Millenium, Kluwer Academic Publishers, Netherlands, 327-340.10.1007/978-94-017-2811-9_23]Search in Google Scholar
[4. Bremer P., 2007 ‒ The colonization of a former sea floor by ferns, PhD Thesis, Nature Conservation and Plant Ecology Group, Department of Environmental Science Wageningen University, The Netherlands.]Search in Google Scholar
[5. Brochet A. L., Guillemain M., Gauthier-Clerc M., Fritz H. and Green A. J., 2010 ‒ Endozoochory of Mediterranean aquatic plant seeds by teal after a period of desiccation: determinants of seed survival and influence of retention time on germinability and viability, Aquatic Botany, 93, 99-106.10.1016/j.aquabot.2010.04.001]Search in Google Scholar
[6. Bruni I., Gentili R., De Mattia F., Cortis P., Rossi G. and Labra M., 2013 ‒ A multi-level analysis to evaluate the extinction risk of and conservation strategy for the aquatic fern Marsilea quadrifolia L. in Europe, Aquatic Botany, 111, 35-42, DOI: 10.1016/j.aquabot.2013.08.005.10.1016/j.aquabot.2013.08.005]Search in Google Scholar
[7. Burk C. J., Lauermann S. D. and Mesrobian A. L., 1976 ‒ The spread of several introduced of recently invading aquatics in western Massachusetts, Rhodora, 76, 766-772.]Search in Google Scholar
[8. Carlquist S., 1967 ‒ The biota of long-distance dispersal, Plant dispersal to Pacific islands, Torrey Botanical Club, V, 94, 129-162.10.2307/2484044]Search in Google Scholar
[9. Chang W. L., 1970 ‒ The effect of weeds on rice in paddy field, Weed species and population density, Journal of Taiwan Agricultural Research, I, 19, 4, 18-25.]Search in Google Scholar
[10. Ciocârlan V., 1990 ‒ Flora Deltei Dunării, Edit. Ceres, Bucureşti, 115. (in Romanian)]Search in Google Scholar
[11. Ciocârlan V., 2000 ‒ Flora ilustrată a României, Pteridophyta et Spermatophyta, Edit. Ceres, Bucureşti, 1140. (in Romanian)]Search in Google Scholar
[12. Conrad C., 2005 ‒ Marsilea quadrifolia L. trouvée en banlieue toulousaine, Isatis, 1, 5, 54-61. (in French)]Search in Google Scholar
[13. Crabbe J. A. and Akeroyd J. R., 1993 - Marsilea L., in Tutin T. G. (ed.), Flora Europaea, Psilotaceae to Platanaceae, 1, 2nd edition, 31-32, Cambridge University Press.]Search in Google Scholar
[14. Dallai D., Del Prete C., Sgarbi E. and Grimaudo M., 2010 ‒ Integrated in situ/ex situ plant conservation practices managed by University Botanic Garden of Modena, Bollettino dei Musei e Degli Istituti Biologici dell’Università di Genova, 72, 33-42.]Search in Google Scholar
[15. De Vlaming V. and Proctor V. W., 1968 ‒ Dispersal of aquatic organisms: viability of seeds recovered from the droppings of captive killdeer and mallard ducks, American Journal of Botany, 55, 20-26.10.1002/j.1537-2197.1968.tb06939.x]Search in Google Scholar
[16. Dihoru G. and Negrean G., 1976 ‒ Flora of the Danube Delta, Peuce (Botanic), 5, 217-251. (in Romanian)]Search in Google Scholar
[17. Dihoru G. and Negrean G., 2009 ‒ Cartea roşie a plantelor vasculare din România, Edit. Academiei Române, Bucureşti, Romania, 630. (in Romanian)]Search in Google Scholar
[18. Drok W. J. A. and Weeda E. J., 1999 - Marsilea quadrifolia L. new to the Netherlands, Gorteria, 25, 5, 89-103.]Search in Google Scholar
[19. Estrelles E., Ibars A. M., Iranzo J. and Morales F., 2001 ‒ Recuperación y reintroducción de Marsilea quadrifolia en los arrozales del Delta del Ebro (Tarragona, España), Botanica Complutensis, 25, 251-259. (in Spanish)]Search in Google Scholar
[20. Figuerola J. and Green A. J., 2002 ‒ Dispersal of aquatic organisms by waterbirds: a review of past research and priorities for future studies, Freshwater Biology, 47, 483-494.10.1046/j.1365-2427.2002.00829.x]Search in Google Scholar
[21. Godreau V., Bornette G., Frochot B., Amoros C., Castella E., Oertli B., Oberti D. and Craney E., 1999 ‒ Biodiversity in the floodplain of Saône: a global approach, Biodiversity and Conservation, 8, 839-864.10.1023/A:1008807328566]Search in Google Scholar
[22. Green A. J., Figuerola J. and Sánchez M. I., 2002 ‒ Implications of waterbird ecology for the dispersal of aquatic organisms, Acta Oecologica, 23, 177-189.10.1016/S1146-609X(02)01149-9]Search in Google Scholar
[23. Green A. J., Jenkins K. M., Bell D., Morris P. J. and Kingsford R. T., 2008 ‒The potential role of waterbirds in dispersing invertebrates and plants in arid Australia, Freshwater Biology, 53, 380-392.]Search in Google Scholar
[24. Grolle R., 1988 ‒ Proposal to conserve Marsilea L. (Pteridophyta: Marsileaceae) with Marsilea quadrifolia as typ. Conserv, Taxon, 37, 2, 483-486.10.2307/1222181]Search in Google Scholar
[25. Guppy H. B., 1906 ‒ Observations of a Naturalist in the Pacific 1896-1899, 2 (Plant Dispersal), Macmillan and Co., London.]Search in Google Scholar
[26. Hulina N., 1998 - Rare, endangered or vulnerable plants and neophytes in a drainage system in Croatia, Natura Croatica, 7, 4, 279-289.]Search in Google Scholar
[27. Iamonico D., 2012 ‒ Lectotypification of Marsilea quadrifolia L. (Marsileaceae), American Fern Journal, 102, 4, 289-292.10.1640/0002-8444-102.4.289]Search in Google Scholar
[28. Jalas J. and Suominen J., (eds), 1972 ‒ Atlas Florae Europaeae, Distribution of Vascular Plants in Europe, 1, Pteridophyta (Psilotaceae to Azollaceae), The Committee for Mapping the Flora of Europe and Societas Biologica Fennica Vanamo, Helsinki, 121.]Search in Google Scholar
[29. Johnson D. M., 1985 ‒ New records for longevity of Marsilea sporocarps, American Fern Journal, 75, 30-31.10.2307/1546579]Search in Google Scholar
[30. Johnson D. M., 1986 ‒ Systematics of the New World species of Marsilea (Marsileaceae), Systematic Botany Monographs, 11.10.2307/25027626]Search in Google Scholar
[31. Johnson D. M., 1988 ‒ Proposal to conserve Marsilea L. (Pteridophyta: Marsiliaceae) with Marsilea quadrifolia as typ. conserv., Taxon, 37, 2, 483-486.10.2307/1222181]Search in Google Scholar
[32. Kashta L., 2007 ‒ Aquatic macrophytes in the lake Shkondra ‒ river Buna wetlands complex, in M. Pinna et al. (eds), Rivers and citizens, Cross-border experiences in environmental protection and sustainable development, e-ISBN: 978-88-8305-050-3.]Search in Google Scholar
[33. Kathiresan R. M., 2006 ‒ Effects of Global Warming on Invasion of Alien Plants in Asia, http://www.niaes.affrc.go.jp/sinfo/sympo/h18/20061212/pdf/s6_kathiresan.pdf.]Search in Google Scholar
[34. Khan M. A. and Manzoor A. S., 2010 ‒ Studies on biomass changes and nutrient lock-up efficiency in a Kashmir Himalayan wetland ecosystem, Journal of Ecology and The Natural Environment, 2, 8, 147-153. ]Search in Google Scholar
[35. Klokov V. M. and Dyachenko T. M., 1988 ‒ Second Find of Marsilea quadrifolia L. in the Lower Danube Ukrainian SSR USSR, Ukrayinskyi Botanichnyi Zhurnal, 45, 74-75.]Search in Google Scholar
[36. Laguna E., 2001 ‒ The micro-reserves as a tool for conservation of threatened plants in Europe, Nature and Environment series (Council of Europe, Strasbourg), 121, 1-120.]Search in Google Scholar
[37. Laguna E., Ballester G. and Deltoro V., 2013 ‒ Plant Micro-Reserves (PMRs): Origin and Technical Concept, in Kadis C. and Thanos C. A. and Lumbreras Laguna E., (eds), Plant micro-reserve: from theory to practice, Experiences gained from EU LIFE and other related projects, 2-12, Utopia Publishing, Athens.]Search in Google Scholar
[38. Legea nr. 13 din 11 martie 1993 pentru aderarea României la Convenția privind conservarea vieții sălbatice și a habitatelor naturale din Europa, adoptată la Berna la 19 septembrie 1979, Monitorul official nr. 62 din 25 martie 1993. (in Romanian)]Search in Google Scholar
[39. Lehrer A. Z., 1977 ‒ Codul biocartografic al principalelor localităţi din R. S. România, Edit. Dacia, Cluj-Napoca. (in Romanian)]Search in Google Scholar
[40. Lin Y. X. and Johnson D. M., 2013 ‒ Marsileaceae, in Wu Z. Y., Raven P. H. and Hong D. Y., (eds), Flora of China, 2-3 (Pteridophytes), 123-124, Beijing, Science Press; St. Louis: Missouri Botanical Garden Press.]Search in Google Scholar
[41. Lozano F. D., Herbada G., Rivero L. M., Moreno Saiz J. C. and Ollero H. S., 1996 ‒ Threatened plants in Peninsular and Balearic Spain: A report based on the EU Habitats Directive, Biological Conservation, 76, 2, 123-133.10.1016/0006-3207(95)00107-7]Search in Google Scholar
[42. Luo X.-Y. and Ikeda H., 2007 ‒ Effects of four rice herbicides on the growth of an aquatic fern Marsilea quadrifolia L., Weed Biology and Management, 7, 4, 237-241.10.1111/j.1445-6664.2007.00262.x]Search in Google Scholar
[43. Lupia R., Schneider H., Moeser G. M., Pryer K. M. and Crane P. R., 2000 ‒ Marsileaceae sporocarps and spores from de late Cretaceous of Georgia, USA, International Journal of Plant Science, 161, 16, 975-988.10.1086/317567]Search in Google Scholar
[44. Miranda A. F., Muradov N., Gujar A., Stevenson T., Nugegoda D., Ball A. S. and Mouradov N., 2014 ‒ Application of Aquatic Plants for the Treatment of Selenium-Rich Mining Wastewater and Production of Renewable Fuels and Petrochemicals, Journal of Sustainable Bioenergy Systems, 4, 97-112.10.4236/jsbs.2014.41010]Search in Google Scholar
[45. Mucina L., 1997 ‒ Conspectus of classes of European vegetation, Folia Geobotanica Phytotaxonomica, 32, 117-172.10.1007/BF02803738]Search in Google Scholar
[46. Nagalingum N. S., Schneider H. and Pryer K. M., 2006 ‒ Comparative morphology of reproductive structures in heterosporous water ferns and a reevaluation of the sporocarp, International Journal of Plant Sciences, 167, 805-815.10.1086/503848]Search in Google Scholar
[47. Nowak A. and Nowak S., 2006 ‒ Anthropogenic habitats can shelter threatened plants, in Gafta D. and Akeroyd K. (eds), Nature conservation: concepts and practice, Edit. Springer, Berlin, 107-115.10.1007/978-3-540-47229-2_12]Search in Google Scholar
[48. Nöel F., Prati D., van Kleunen M., Gygax A., Moser D. and Fischer M., 2011 ‒ Establishment success of 25 rare wetland species introduced into restored habitats is best predicted by ecological distance to source habitats, Biological Conservation, 44, 602-609.10.1016/j.biocon.2010.11.001]Search in Google Scholar
[49. Oltean M., Negrean G., Popescu A., Roman N., Dihoru G., Sanda V. and Mihăilescu S., 1994 ‒ Lista roşie a plantelor superioare din România, in Oltean M. (ed.), Studii, sinteze, documentaţii de ecologie, Academia Română, Institutul de Biologie, 1, 1-52. (in Romanian)]Search in Google Scholar
[50. Pistoja F., Giordana F., Petraglia A. and Rossi G., 2006 ‒ Marsilea quadrifolia L., Nuove statzoni in Pianura Padana, Archive Geobotanica, 9, 1-2, 48-54. (in Italian)]Search in Google Scholar
[51. Poschlod P., Bakker J. P. and Kahmen S., 2005 ‒ Changing land use and its impact on biodiversity, Basic and Applied Ecology, 6, 2, 93-98.10.1016/j.baae.2004.12.001]Search in Google Scholar
[52. Radovic I., Radovic D., Jaksic P., Dzukik G., Stevanovic V., Bulic Z. and Buskovic V., 2008 ‒ Skadar Lake Region and “target species” of European conservation concern, Natura Montenegrina, Podgorica, 7, 2, 31-44. ]Search in Google Scholar
[53. Rawat S. K., Singh R. K. and Singh R. P., 2012 ‒ Remediation of nitrite contamination in ground and surface water using aquatic macrophytes, Journal of Environmental Biology, 33, 51-56, retrieved from http://www.jeb.co.in/journal_issues/201201_jan12/paper_09.pdf.]Search in Google Scholar
[54. Satapathy K. B. and Singh P. K., 1985 ‒ Control of weeds by Azolla in Rice, Journal of Aquatic Plant Management, 23, 40-42.]Search in Google Scholar
[55. Sârbu A., Negrean G., Pascale G. and Anastasiu P., 2006 ‒ Globally and European Threatened Plants Present in Dobrogea (South-Easthern Romania), in Gafta D. and Akeroyd J. (eds), Nature Conservation: concepts and practice, Springer, Berlin, 116-122.10.1007/978-3-540-47229-2_13]Search in Google Scholar
[56. Sârbu A. (ed.), 2007 ‒ Arii speciale pentru protecţia şi conservarea plantelor în România, Edit. Victor Babeş, Bucureşti. (in Romanian)]Search in Google Scholar
[57. Sârbu I., Ştefan N. and Oprea A., 2013 ‒ Plante vasculare din România, Determinator ilustrat de teren, Edit. Victor Babeş, Bucureşti. (in Romanian)]Search in Google Scholar
[58. Schneider H. and Pryer K. M., 2002 ‒ Structure and function of spores in the aquatic heterosporous fern family Marsileaceae, International Journal of Plant Sciences, 163, 485-505.10.1086/340736]Search in Google Scholar
[59. Schneider-Binder E., 2014 ‒ The four leaf water clover (Marsilea quadrifolia L.) an endangered species, Aspects of conservation and management, Transylvanian Review of Systematical and Ecological Research, 16.1, 165-180.10.1515/trser-2015-0011]Search in Google Scholar
[60. Serviss B. E. and Peck J. H., 2008 ‒ New and noteworthy records of several non-native vascular plant species in Arkansas, Journal of Botanical Research, Institute of Texas, 2, 1, 637-641.]Search in Google Scholar
[61. Snape J. R., Maund S. J., Pickford D. B. and Hutchinson T. H., 2004 ‒ Ecotoxicogenomics: the challenge of integrating genomics into aquatic and terrestrial ecotoxicology, Aquatic Toxicology, 67, 143-154.10.1016/j.aquatox.2003.11.01115003699]Search in Google Scholar
[62. Strat D., 2010 ‒ Trends in Climate and Bioclimate of Sărăturile Beach Ridges Plain - Danube Delta, Analele Universităţii “Ovidius”, Seria Geografie, 5, 1, 17-30.]Search in Google Scholar
[63. Tutin T. G., Burges N. A., Chater A. O., Edmondson J. R., Heywood V. H., Moore D. M., Valentine D. H., Walters S. M. and Webb D. A. (eds), 1993 ‒ Flora Europaea, 1 Psilotaceae to Platanaceae, Cambridge University Press, Cambridge, UK.]Search in Google Scholar
[64. Ţopa E., 1952 ‒ Marsilea L., in Săvulescu T. (ed.), Flora României, I, 150-151, Edit. Academiei Române, Bucureşti, România. (in Romanian)]Search in Google Scholar
[65. Vitalis R., Riba M., Colas B. and Grilas P., 2002 ‒ Multilocus genetic structure at contrasted spatial scale of the endangered water fern Marsilea Strigosa Wild. (Marsileaceea, Pteridophyta), American Journal of Botany, 89, 7, 1142-1155, doi: 10.3732/ajb.89.7.1142.]Search in Google Scholar
[66. Witkowski Z. J., Król W. and Solarz W., 2003 ‒ Carpathian List of Endangered Species, WWF and Institute of Nature Conservation, Polish Academy of Sciences, Vienna-Krakow.]Search in Google Scholar
[67. Xhulaj M. and Mullaj A., 2002 ‒ Diagnosis report of the Narta area, Flora and vegetation, Retrieved from: http://www.medwetcoast.com/IMG/albsdnartareport_flora-2.doc. ]Search in Google Scholar