TY - CPAPER AU - Arvin Abbasali TI - AN ANALYZE ON VARIATIONS OF TOTAL OZOZNE IN ISFAHAN STATION T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference PY - 2011 DO - 10.5593/sgem2011/s20.105 PB - Stef92 Technology ER -