@article{JMPA_1936_9_15__163_0,
     author = {Haag, Jules},
     title = {Sur certains probl\`emes de la th\'eorie des fonctions harmoniques},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {163--170},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 15},
     year = {1936},
     zbl = {0014.11308},
     language = {fr},
     url = {http://archive.numdam.org/item/JMPA_1936_9_15__163_0/}
}