@article{DE_1968_4_3_a4,
     author = {V. V. Pukhnachov},
     title = {Asymptotics of the solutions of a linear ordinary second order differential equation with transition point dependent on a parameter},
     journal = {Differencialʹnye uravneni\^a},
     pages = {429--438},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_3_a4/}
}