@article{IVM_1958_4_a15,
     author = {N. K. Kulikov},
     title = {A~new method for solving linear and nonlinear total differential equations with variable coefficients. {Determination} of periodic solutions},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {140--152},
     publisher = {mathdoc},
     number = {4},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1958_4_a15/}
}