@article{AIHPA_1997__66_3_293_0,
     author = {Yaremko, Yurij},
     title = {Contact transformations in {Wheeler-Feynman} electrodynamics},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {293--322},
     publisher = {Gauthier-Villars},
     volume = {66},
     number = {3},
     year = {1997},
     mrnumber = {1456515},
     zbl = {0885.70016},
     language = {en},
     url = {http://www.numdam.org/item/AIHPA_1997__66_3_293_0/}
}