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References

Bernauer, D. and Jansen W. 2006: Recent invasions of alien macroinvertebrates and loss of native species in the upper Rhine River, Germany. Aquatic Invasions. Volume 1, Issue 2: 55-71.

Danube Watch. 2008: Invasion of the Danube. http://www.icpdr.org/icpdr-pages/dw0803_p_07.htm . [accessed 20 February 2012].

DG Transport Inland Waterway Transport http://ec.europa.eu/transport/inland/index_en.htm

Leuven, R.S.E.W., van der Velde, G., Baijens, I. et al. 2009: The river Rhine: a global highway for dispersal of aquatic invasive species. Biological Invasions. Vol.9. No.11, 1989-2008, DOI: 10.1007/s10530-009-9491-7. Springer-Verlag GmbH, Heidelberg. Germany.