TY - JOUR AU - V. I. Agoshkov TI - An inverse problem in transport theory and properties of a reflection operator JO - Differencialʹnye uravneniâ PY - 1991 SP - 1002 EP - 1006 VL - 27 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1991_27_6_a11/ LA - ru ID - DE_1991_27_6_a11 ER -