Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1981__31_2_a4, author = {Dvure\v{c}enskij, Anatolij}, title = {On extension properties for observables}, journal = {Mathematica slovaca}, pages = {149--153}, publisher = {mathdoc}, volume = {31}, number = {2}, year = {1981}, mrnumber = {611626}, zbl = {0474.03032}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1981__31_2_a4/} }
Dvurečenskij, Anatolij. On extension properties for observables. Mathematica slovaca, Tome 31 (1981) no. 2, pp. 149-153. http://geodesic.mathdoc.fr/item/MASLO_1981__31_2_a4/