@article{ZVMMF_1980_20_4_a8,
     author = {A. A. Abramov},
     title = {On the behaviour of boundary conditions moved to the neighborhood of a regular singular point},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {901--908},
     publisher = {mathdoc},
     volume = {20},
     number = {4},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1980_20_4_a8/}
}