@book{ Solr-acta10268, title = {Major threats for amphibian and reptiles species in the Transylvanian rivers' basins recommended monitoring methods}, series = {Tiscia monograph series}, series = {Ecological aspects of the Tisa River Basin : 10 years anniversary regional conference 21nd - 24th March 2002., Târgu Mureş, Romania}, author = {Mara Gyöngyvér}, year = {2002}, url = {http://acta.bibl.u-szeged.hu/10268/1/tiscia_mono_006_199-203.pdf} }