@article{1103859406,
author = {Rocca, F. and Sirugue, M.},
title = {Phase operator and condensed systems},
journal = {Comm. Math. Phys.},
volume = {29},
number = {1},
year = {1973},
pages = { 111-121},
language = {en},
url = {http://dml.mathdoc.fr/item/1103859406}
}
Rocca, F.; Sirugue, M. Phase operator and condensed systems. Comm. Math. Phys., Tome 29 (1973) no. 1, pp. 111-121. http://gdmltest.u-ga.fr/item/1103859406/