@article{IVM_1972_11_a5,
     author = {M. N. Krivtsova},
     title = {A~certain method of approximate solution of nonlinear differential equations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {39--45},
     year = {1972},
     number = {11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1972_11_a5/}
}