@article{ZVMMF_1981_21_3_a26,
     author = {V. V. Dyakin and V. Ya. Raevskii},
     title = {The method of penalty functions in eigenvalue problems},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {779--782},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1981_21_3_a26/}
}