@article{VMUMM_1996_1_a19,
     author = {A. A. Lokshin and E. A. Sagomonyan and L. G. Enikeeva},
     title = {On the factorization of nonlinear oscillator equations},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {90--92},
     year = {1996},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1996_1_a19/}
}