TY - CPAPER AU - Valentin Gushchin AU - Adam Khasanov TI - THE LEVEL SURFACE OF THE GENERALIZED PROBLEM OF TWO CENTERS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Informatics, Geoinformatics and Remote Sensing PY - 2017 SP - 673 EP - 680 DO - 10.5593/sgem2017/22/s09.085 PB - STEF92 Technology ER -