%0 Journal Article %A A. G. Anikin %A G. M. Dugacheva %T Determination of small heat effects by a thermographic method at temperatures below $0^\circ$ %J Doklady Akademii Nauk %D 1960 %P 634-637 %V 135 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_135_3_a32/ %G ru %F DAN_1960_135_3_a32