@article{AIHPB_1964__1_1_3_0,
     author = {R\'enyi, Alfred and Fr\'echet, Maurice},
     title = {Sur les espaces simples des {Probabilit\'es} conditionnelles},
     journal = {Annales de l'institut Henri Poincar\'e. Section B. Calcul des probabilit\'es et statistiques},
     pages = {3--21},
     publisher = {Gauthier-Villars},
     volume = {1},
     number = {1},
     year = {1964-1965},
     mrnumber = {182992},
     zbl = {0135.18605},
     language = {fr},
     url = {http://www.numdam.org/item/AIHPB_1964__1_1_3_0/}
}