TY JOUR TI Emanation and electrical effects in the subsoils atmosphere above Kaluga impact ring structure KW emanation and electrical effects KW subsoils atmosphere KW Kaluga impact ring structure KW hydrogen-thoron emanation survey. JO Russian Journal of Earth Sciences AU , .. AU , .. AU , .. AU , .. AU , .. PY 1999 IS 1 PB Геофизический центр Российской Академии Наук