@article{GDZPPN002416050,
title = {An Elementary Proof of the Baker-Campbell-Hausdorff-Dynkin Formula.},
journal = {Mathematische Zeitschrift},
volume = {142},
year = {1975},
pages = {209-212},
zbl = {0298.22010},
url = {http://dml.mathdoc.fr/item/GDZPPN002416050}
}
Djokovic, Dragomir Z. An Elementary Proof of the Baker-Campbell-Hausdorff-Dynkin Formula.. Mathematische Zeitschrift, Tome 142 (1975) pp. 209-212. http://gdmltest.u-ga.fr/item/GDZPPN002416050/