@article{AIHPB_1987__23_S2_359_0,
     author = {Biane, Ph. and Yor, M.},
     title = {Variations sur une formule de {Paul} {L\'evy}},
     journal = {Annales de l'I.H.P. Probabilit\'es et statistiques},
     pages = {359--377},
     publisher = {Gauthier-Villars},
     volume = {23},
     number = {S2},
     year = {1987},
     mrnumber = {898500},
     zbl = {0623.60099},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPB_1987__23_S2_359_0/}
}