Kajzer-Bonk J., Nowicki P., Bonk M., Skórka P., Witek M., Woyciechowski M. (2013) Local populations of endangered Maculinea (Phengaris) butterflies are flood resistantJournal of Insect Conservation 17 (6): 1105–1112. http://link.springer.com/article/10.1007%2Fs10841-013-9591-7