TY - CPAPER AU - Ivan Kalugin TI - HIGH FREQUENCY ENVIRONMENTAL VARIABILITY RESTORED BY GEOCHEMISTRY OF LAKE SEDIMENTS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2012 12th International Multidisciplinary Scientific GeoConference PY - 2012 DO - 10.5593/sgem2012/s17.v4012 PB - Stef92 Technology ER -