TY - CPAPER AU - Robert Machowski AU - Martyna Anna Rzetala AU - Mariusz Rzetala TI - CHEMICAL COMPOSITION OF THE SURFACE LAYER OF BOTTOM SEDIMENTS IN THE NORTHERN PART OF THE CHOTT EL JERID PERIODIC LAKE IN TUNISIA T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining PY - 2017 SP - 89 EP - 96 DO - 10.5593/sgem2017/11/s01.011 PB - STEF92 Technology ER -