@article{1103842743, author = {Roepstorff, G.}, title = {Coherent photon states and spectral condition}, journal = {Comm. Math. Phys.}, volume = {16}, number = {1}, year = {1970}, pages = { 301-314}, language = {en}, url = {http://dml.mathdoc.fr/item/1103842743} }
Roepstorff, G. Coherent photon states and spectral condition. Comm. Math. Phys., Tome 16 (1970) no. 1, pp. 301-314. http://gdmltest.u-ga.fr/item/1103842743/