@article{AIHPA_1996__64_4_409_0,
     author = {Summers, Stephen J.},
     title = {Geometric modular action and transformation groups},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {409--432},
     publisher = {Gauthier-Villars},
     volume = {64},
     number = {4},
     year = {1996},
     mrnumber = {1407754},
     zbl = {0860.46054},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1996__64_4_409_0/}
}