Sasáková, Naďa, Katarína Veszelits Laktičová, Rudolf Hromad, Dušan Chvojka, Ján Koščo, and Miloslav Ondrašovič. 2013. “CONTAMINATION OF INDIVIDUAL SOURCES OF DRINKING WATER LOCATED IN ENVIRONMENTALLY POLLUTED CENTRAL SPIÅ  REGION (SLOVAKIA)”. Journal of Microbiology, Biotechnology and Food Sciences 3 (3):262-65. https://office2.jmbfs.org/index.php/JMBFS/article/view/7046.