Kelepertzis, E., A. Argyraki, E. Daftsis, and D. Ballas. “QUALITY CHARACTERISTICS OF SURFACE WATERS AT ASPROLAKKAS RIVER BASIN, N.E. CHALKIDIKI, GREECE”. Bulletin of the Geological Society of Greece, vol. 43, no. 4, Jan. 2010, pp. 1737-46, doi:10.12681/bgsg.11359.