TY - JOUR AU - N. M. Krukovskii TI - Theorems on the $m$-fold completeness of the generalized eigen- and associated functions from $W_2^1$ of certain boundary value problems for elliptic equations and systems JO - Differencialʹnye uravneniâ PY - 1976 SP - 1842 EP - 1851 VL - 12 IS - 10 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1976_12_10_a11/ LA - ru ID - DE_1976_12_10_a11 ER -