%0 Journal Article %A V. I. Gryn' %T On inverse problems of the theory of radiation transport in two-dimensional geometries %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1987 %P 441-455 %V 27 %N 3 %U http://geodesic.mathdoc.fr/item/ZVMMF_1987_27_3_a13/ %G ru %F ZVMMF_1987_27_3_a13