@article{ZVMMF_1972_12_2_a26,
     author = {V. I. Ul'yanova},
     title = {On the displacement of boundary conditions through singular points},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {528--532},
     publisher = {mathdoc},
     volume = {12},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1972_12_2_a26/}
}