@article{AIHPA_1972__16_2_93_0,
     author = {Bugajska, Krystyna and Bugajski, Slawomir},
     title = {Hidden variables and 2-dimensional {Hilbert} space},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {93--102},
     publisher = {Gauthier-Villars},
     volume = {16},
     number = {2},
     year = {1972},
     mrnumber = {389062},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AIHPA_1972__16_2_93_0/}
}