@article{LJM_1999_4_a9,
     author = {D. P. Zhelobenko},
     title = {On formal series and infinite products {over~Lie} algebras},
     journal = {Lobachevskii journal of mathematics},
     pages = {207--218},
     year = {1999},
     volume = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/LJM_1999_4_a9/}
}