Voir la notice de l'article provenant de la source Heldermann Verlag
@article{JLT_1992_2_1_a10, author = {G. Czichowski}, title = {Hausdorff und die {Exponentialformel} in der {Lie-Theorie}}, journal = {Journal of Lie theory}, pages = {085--094}, publisher = {mathdoc}, volume = {2}, number = {1}, year = {1992}, url = {http://geodesic.mathdoc.fr/item/JLT_1992_2_1_a10/} }
G. Czichowski. Hausdorff und die Exponentialformel in der Lie-Theorie. Journal of Lie theory, Tome 2 (1992) no. 1, pp. 085-094. http://geodesic.mathdoc.fr/item/JLT_1992_2_1_a10/