@article{JOLT_2004_14_2_a7,
     author = {L. W. Tu},
     title = {Une {Courte} {D\'emonstration} de la {Formule} de {Campbell-Hausdorff

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     journal = {Journal of Lie Theory},
     pages = {501--508},
     year = {2004},
     volume = {14},
     number = {2},
     zbl = {1061.22007},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2004_14_2_a7/}
}