@article{AIHPA_1999__70_3_239_0,
     author = {Vitolo, Raffaele},
     title = {Quantum structures in {Galilei} general relativity},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {239--257},
     publisher = {Gauthier-Villars},
     volume = {70},
     number = {3},
     year = {1999},
     mrnumber = {1718181},
     zbl = {0965.81038},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1999__70_3_239_0/}
}