@article{ASENS_1906_3_23__387_0,
     author = {Raffy, Louis},
     title = {Recherches sur les surfaces isothermiques},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {387--428},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 23},
     year = {1906},
     doi = {10.24033/asens.570},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/asens.570/}
}