@article{AIHPA_1988__49_2_245_0,
     author = {Bacry, H.},
     title = {The position operator revisited},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {245--255},
     publisher = {Gauthier-Villars},
     volume = {49},
     number = {2},
     year = {1988},
     mrnumber = {984151},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1988__49_2_245_0/}
}