@article{DE_1973_9_10_a17,
     author = {G. S. Krechetov},
     title = {Comparison functions for the solutions of a certain first order nonlinear differential equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1911--1914},
     publisher = {mathdoc},
     volume = {9},
     number = {10},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_10_a17/}
}