1. Heywood, V.H.: Flowering Plants of the World (No. Ed. 2). BT Batsford Ltd (1993)
2. Holm, L., Pancho, J.V., Herberger, J.P., Plucknett, D.L.: A Geographical Atlas of World Weeds. Wiley, Hoboken (1979)
3. Hobbs, R. J. (ed.).: Invasive Species in a Changing World. Island Press, Washington, D.C. (2000)
4. Pimentel, D., McNair, S., Janecka, J., Wightman, J., Simmonds, C., O’connell, C. et al.: Economic and environmental threats of alien plant, animal, and microbe invasions. Agric. Ecosyst. Environ. 84(1), 1–20 (2001)
5. Baskin, Y.: A Plague of Rats and Rubbervines: The Growing Threat of Species Invasions. Island Press, Washington, D.C. (2003)