TY - JOUR AU - A. A. Anikin AU - A. I. Popykin AU - S. B. Shikhov TI - The stability of the solution of the spectral problem for a multi-group diffusion approximation of the transport equation JO - Differencialʹnye uravneniâ PY - 1978 SP - 1692 EP - 1695 VL - 14 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1978_14_9_a19/ LA - ru ID - DE_1978_14_9_a19 ER -