%0 Journal Article %A È. G. Ianovitskii %T A radiation field in a semi-infinite atmosphere under isotropic scattering %J Doklady Akademii Nauk %D 1976 %P 1319-1322 %V 227 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_227_6_a10/ %G ru %F DAN_1976_227_6_a10