المؤلفون: Würtenberger, Gert, author, van der Kooij, Paul, author, Kiewiet, Bart, author, Ekvad, Martin, author

المصدر: European Union Plant Variety Protection, 2021.

الإتاحة: https://doi.org/10.1093/oso/9780192898234.003.0001Test

المؤلفون: McLusky, Donald S., author, Elliott, Michael, author

المصدر: The Estuarine Ecosystem : Ecology, Threats and Management, 2004, ill.

الإتاحة: https://doi.org/10.1093/acprof:oso/9780198525080.003.0003Test