@article{IVM_1975_5_a3,
     author = {Yu. B. Ermolaev},
     title = {Computation of the central element of the universal enveloping algebra of {a~Witt} algebra},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {20--26},
     publisher = {mathdoc},
     number = {5},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1975_5_a3/}
}