@book{ Solr-acta10208, title = {Hygienic bacteriological valuation of the Upper Tisa region}, series = {Tiscia monograph series}, series = {The Upper Tisa valley : preparatory proposal for Ramsar site designation and an ecological background Hungarian, Romanian, Slovakian and Ukrainian co-operation}, author = {Soós Judit}, year = {1999}, url = {http://acta.bibl.u-szeged.hu/10208/1/tiscia_mono_004_349-353.pdf} }