TY - CPAPER AU - Assia Bozhinova-Haapanen TI - STUDIES ON THE POISSON COEFFICIENT OF PLIOCENE CLAYS ON THE TERRITORY OF SOFIA CITY T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING PY - 2015 DO - 10.5593/sgem2015/b12/s2.104 PB - Stef92 Technology ER -