Lipták, Boris, Agata Mrugała, Ladislav Pekárik, Anton Mutkovič, Daniel Gruľa, Adam Petrusek, and Antonín Kouba. “Expansion of the Marbled Crayfish in Slovakia: Beginning of an Invasion in the Danube Catchment?”. Journal of Limnology 75, no. 2 (January 26, 2016). Accessed September 22, 2019. https://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2016.1313.