@article{IVM_1961_5_a3,
     author = {V. I. Lekomtsev and L. M. Muratov},
     title = {On the stability of solutions of first order differential equations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {23--26},
     year = {1961},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1961_5_a3/}
}