@article{DE_1989_25_2_a16,
     author = {M. V. Fedoryuk},
     title = {Connection formulas for spheroidal functions in different coordinate systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {294--299},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_2_a16/}
}