@article{AIHPA_1972__17_3_195_0,
     author = {Fano, G. and Gallavotti, G.},
     title = {Dense sums},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {195--219},
     publisher = {Gauthier-Villars},
     volume = {17},
     number = {3},
     year = {1972},
     mrnumber = {356789},
     zbl = {0252.40001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AIHPA_1972__17_3_195_0/}
}