@article{IVM_1983_12_a10,
     author = {Yu. B. Ermolaev},
     title = {A method of extensions of {Lie} algebras},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {61--64},
     year = {1983},
     number = {12},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1983_12_a10/}
}