TY - CPAPER AU - Tomasz Joniak TI - CONCENTRATION OF NUTRIENTS AND N:P RATIO IN SURFACE SEDIMENTS OF SMALL WATER BODIES OF AGRICULTURAL AND FOREST AREAS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Ecology, Economics, Education and Legislation PY - 2018 SP - 213 EP - 220 DO - 10.5593/sgem2018/5.1/s20.028 PB - STEF92 Technology ER -