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@article{DE_1966_2_9_a1, author = {G. I. Laptev}, title = {Eigenvalue problems for differential equations of the second order in {Banach} and {Hilbert} spaces}, journal = {Differencialʹnye uravneni\^a}, pages = {1151--1160}, publisher = {mathdoc}, volume = {2}, number = {9}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1966_2_9_a1/} }
TY - JOUR AU - G. I. Laptev TI - Eigenvalue problems for differential equations of the second order in Banach and Hilbert spaces JO - Differencialʹnye uravneniâ PY - 1966 SP - 1151 EP - 1160 VL - 2 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1966_2_9_a1/ LA - ru ID - DE_1966_2_9_a1 ER -
G. I. Laptev. Eigenvalue problems for differential equations of the second order in Banach and Hilbert spaces. Differencialʹnye uravneniâ, Tome 2 (1966) no. 9, pp. 1151-1160. http://geodesic.mathdoc.fr/item/DE_1966_2_9_a1/