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):1868-77. https://doi.org/10.12681/bgsg.11378.