@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/}
}