@article{TMF_1997_112_3_a1,
     author = {I. Z. Golubchik and V. V. Sokolov},
     title = {Integrable equations on $\mathbb Z$-graded {Lie} algebras},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {375--383},
     year = {1997},
     volume = {112},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1997_112_3_a1/}
}