@article{DAN_1957_114_6_a12,
     author = {M. G. Belkina},
     title = {Asymptotic representations of spheroidal functions with an azimuth index $m=1$},
     journal = {Doklady Akademii Nauk},
     pages = {1185--1188},
     publisher = {mathdoc},
     volume = {114},
     number = {6},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_114_6_a12/}
}