Gollasch, S., H. Rosenthal, H. Botnen, J. Hamer, I. Laing, E. Leppäkoski, E. Macdonald, D. Minchin, M. Nauke, S. Olenin, S. Utting, M. Voigt & I. Wallentinus. (2000). Fluctuations of zooplankton taxa in ballast water during short-term and long-term ocean-going voyages.
International Review of Hydrobiology. 85(5-6):597-608.