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@article{IVM_1991_10_a7, author = {N. A. Koreshkov}, title = {An invariant of the algebra~$W_n$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {40--42}, publisher = {mathdoc}, number = {10}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1991_10_a7/} }
N. A. Koreshkov. An invariant of the algebra~$W_n$. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 10 (1991), pp. 40-42. http://geodesic.mathdoc.fr/item/IVM_1991_10_a7/