@article{DE_1975_11_10_a9,
     author = {Yu. V. Pokornyi},
     title = {Second solutions of multipoint boundary value problems with convex nonlinearities},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1801--1810},
     publisher = {mathdoc},
     volume = {11},
     number = {10},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_10_a9/}
}