TY - JOUR AU - R. S. Makin AU - S. B. Shikhov TI - Completeness of the system of eigenfunctions of the multigroup diffusion approximation of a conditional-critical problem with a homogeneous active zone and an arbitrary reflector JO - Differencialʹnye uravneniâ PY - 1987 SP - 1812 EP - 1815 VL - 23 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1987_23_10_a23/ LA - ru ID - DE_1987_23_10_a23 ER -