@article{AIHPA_1991__55_4_857_0,
     author = {Ali, S. T. and Antoine, J.-P. and Gazeau, J.-P.},
     title = {Square integrability of group representations on homogeneous spaces. {II.} {Coherent} and quasi-coherent states. {The} case of the {Poincar\'e} group},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {857--890},
     publisher = {Gauthier-Villars},
     volume = {55},
     number = {4},
     year = {1991},
     mrnumber = {1144105},
     zbl = {0752.22003},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1991__55_4_857_0/}
}