@article{AIHPA_1992__57_4_395_0,
     author = {Houard, J. C.},
     title = {A characterization of coherent states from varying {Planck's} constant},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {395--402},
     publisher = {Gauthier-Villars},
     volume = {57},
     number = {4},
     year = {1992},
     mrnumber = {1198984},
     zbl = {0766.35043},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1992__57_4_395_0/}
}