@article{1103840558,
author = {Chaiken, Jan M.},
title = {Number operators for representations of the canonical commutation relations},
journal = {Comm. Math. Phys.},
volume = {7},
number = {1},
year = {1968},
pages = { 164-184},
language = {en},
url = {http://dml.mathdoc.fr/item/1103840558}
}
Chaiken, Jan M. Number operators for representations of the canonical commutation relations. Comm. Math. Phys., Tome 7 (1968) no. 1, pp. 164-184. http://gdmltest.u-ga.fr/item/1103840558/