@article{AIHPA_1977__26_2_193_0, author = {Cahill, K\'evin and Stapp, Henry P.}, title = {Multiple discontinuities for 2-to-4 processes}, journal = {Annales de l'I.H.P. Physique th\'eorique}, pages = {193--212}, publisher = {Gauthier-Villars}, volume = {26}, number = {2}, year = {1977}, mrnumber = {462280}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AIHPA_1977__26_2_193_0/} }