@article{AIHPA_1974__21_2_175_0,
     author = {Nutku, Yavuz},
     title = {Geometry of dynamics in general relativity},
     journal = {Annales de l'institut Henri Poincar\'e. Section A, Physique Th\'eorique},
     pages = {175--183},
     publisher = {Gauthier-Villars},
     volume = {21},
     number = {2},
     year = {1974},
     mrnumber = {408724},
     zbl = {0295.53033},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1974__21_2_175_0/}
}