@article{AIHP_1938__8_2_79_0,
     author = {Ewald, P.P.},
     title = {Optique cristalline (lumi\`ere et rayons {X)} {Interaction} des atomes par rayonnement},
     journal = {Annales de l'institut Henri Poincar\'e},
     pages = {79--110},
     publisher = {INSTITUT HENRI POINCAR\'E ET GAUTHIER-VILLARS},
     volume = {8},
     number = {2},
     year = {1938},
     language = {fr},
     url = {http://www.numdam.org/item/AIHP_1938__8_2_79_0/}
}