@article{AIHPA_1974__21_3_259_0,
     author = {Frigerio, Alberto},
     title = {Quasi-local observables and the problem of measurement in quantum mechanics},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {259--270},
     publisher = {Gauthier-Villars},
     volume = {21},
     number = {3},
     year = {1974},
     mrnumber = {389057},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1974__21_3_259_0/}
}