Budzik, Karolina A., Krystian M. Budzik, and Krystyna Żuwała. “Amphibian Situation in Urban Environment – History of the Common Toad Bufo Bufo in Kraków (Poland)”. Ecological Questions 18 (April 7, 2014): 73 –. Accessed July 19, 2024. https://apcz.umk.pl/EQ/article/view/ecoq-2013-0009.