Stamatis, G. (2010). GROUNDWATER QUALITY OF THE AG. PARASKEVI/TEMPI VALLEY KARSTIC SPRINGS - APPLICATION OF A TRACING TEST FOR RESEARCH OF THE MICROBIAL POLLUTIO (KATO OLYMPOS/NE THESSALY). Bulletin of the Geological Society of Greece, 43(4), 1868–1877. https://doi.org/10.12681/bgsg.11378