TY - JOUR AU - V. V. Bogorodsky AU - M. N. Vitushkina TI - Radiometric method of detection of hidden cracks in covering glaciers JO - Doklady Akademii Nauk PY - 1971 SP - 69 EP - 71 VL - 201 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1971_201_1_a15/ LA - ru ID - DAN_1971_201_1_a15 ER -