@article{ZVMMF_1995_35_8_a1, author = {S. V. Kurochkin}, title = {Topological methods for the localization of eigenvalues of boundary value problems}, journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki}, pages = {1165--1174}, year = {1995}, volume = {35}, number = {8}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZVMMF_1995_35_8_a1/} }