@article{DE_1987_23_9_a0,
     author = {V. S. Adamchik and A. D. Lizarev},
     title = {Asymptotic solutions of differential equations of hypergeometric type},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1475--1483},
     publisher = {mathdoc},
     volume = {23},
     number = {9},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1987_23_9_a0/}
}