@article{DE_1970_6_11_a7,
     author = {V. V. Ryndina},
     title = {Completeness of the sequence of solutions of a second order linear differential equation in a star-shaped domain with respect to a regular singular point of this equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1994--2004},
     publisher = {mathdoc},
     volume = {6},
     number = {11},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_11_a7/}
}