%0 Journal Article %A V. V. Bogorodsky %A M. N. Vitushkina %T Radiometric method of detection of hidden cracks in covering glaciers %J Doklady Akademii Nauk %D 1971 %P 69-71 %V 201 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_201_1_a15/ %G ru %F DAN_1971_201_1_a15