@article{VUU_2018_28_2_a1,
     author = {A. A. Gainetdinova},
     title = {Integration of systems of ordinary differential equations with a small parameter which admit approximate {Lie} algebras},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {143--160},
     publisher = {mathdoc},
     volume = {28},
     number = {2},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2018_28_2_a1/}
}