@article{AIHPB_1964__1_1_23_0,
     author = {Picard, Ph.},
     title = {\'Etude analytique de l'\'equation de diffusion des g\`enes et de certaines de ses g\'en\'eralisations},
     journal = {Annales de l'institut Henri Poincar\'e. Section B. Calcul des probabilit\'es et statistiques},
     pages = {23--109},
     publisher = {Gauthier-Villars},
     volume = {1},
     number = {1},
     year = {1964-1965},
     mrnumber = {191009},
     zbl = {0137.39803},
     language = {fr},
     url = {http://archive.numdam.org/item/AIHPB_1964__1_1_23_0/}
}