@article{JMPA_1908_6_4__283_0,
     author = {Heywood, Bryon},
     title = {Sur l'\'equation fonctionnelle de {Fredholm}},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {283--330},
     publisher = {Gauthier-Villars},
     volume = {6e s{\'e}rie, 4},
     year = {1908},
     language = {fr},
     url = {http://archive.numdam.org/item/JMPA_1908_6_4__283_0/}
}