@article{ZVMMF_2011_51_7_a10,
     author = {V. A. Korobitsyn},
     title = {Basis difference method for orthogonal systems on a~surface},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1308--1316},
     year = {2011},
     volume = {51},
     number = {7},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2011_51_7_a10/}
}