@article{AIHPB_2000__36_4_407_0,
     author = {Barral, Julien},
     title = {Differentiability of multiplicative processes related to branching random walks},
     journal = {Annales de l'I.H.P. Probabilit\'es et statistiques},
     pages = {407--417},
     publisher = {Gauthier-Villars},
     volume = {36},
     number = {4},
     year = {2000},
     mrnumber = {1785388},
     zbl = {0977.60077},
     language = {en},
     url = {http://www.numdam.org/item/AIHPB_2000__36_4_407_0/}
}