@article{ASENS_1920_3_37__95_0,
     author = {Clairin, Jean},
     title = {Sur les transformations de quelques \'equations lin\'eaires aux d\'eriv\'ees partielles du second ordre},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {95--105},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 37},
     year = {1920},
     doi = {10.24033/asens.720},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/asens.720/}
}