@article{MZ_1975__143_172229,
     author = {Dragomir Z. Djokovic},
     title = {An {Elementary} {Proof} of the {Baker-Campbell-Hausdorff-Dynkin} {Formula.}},
     journal = {Mathematische Zeitschrift},
     pages = {209--212},
     publisher = {mathdoc},
     volume = {143},
     year = {1975},
     zbl = {0298.22010},
     url = {http://geodesic.mathdoc.fr/item/MZ_1975__143_172229/}
}