@article{JMPA_1929_9_8__93_0,
     author = {Roy, Louis},
     title = {Sur les \'equations g\'en\'erales de surfaces \'elastiques},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {93--114},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 8},
     year = {1929},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1929_9_8__93_0/}
}