The fish community of the ancient Prespa Lake (Southeast Europe): Non-indigenous species take over
Pietrock, Michael, Ritterbusch, David, Lewin, Wolf-Christian, Shumka, Spase, Spirkovski, Zoran, Ilik-Boeva, Dusica, Brämick, Uwe, Peveling, Ralf
Recent Data on the Distribution of Freshwater Ichthyofauna in Albania
Shumka, Spase, Lalaj, Suada, Šanda, Radek, Shumka, Laura, Meulenbroek, Paul