Reference

Michal Grabowski, Karolina Bacela (2005): First finding of the Ponto-Caspian gammarid species Pontogammarus robustoides and Dikerogammarus haemobaphes (Crustacea: Amphipoda) in the post-glacial lake of the Vistula valley. – Lauterbornia – 2005_55: 107 - 111.