TY - JOUR AU - V. I. Gryn' TI - On inverse problems of the theory of radiation transport in two-dimensional geometries JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 1987 SP - 441 EP - 455 VL - 27 IS - 3 UR - http://geodesic.mathdoc.fr/item/ZVMMF_1987_27_3_a13/ LA - ru ID - ZVMMF_1987_27_3_a13 ER -