@article{ASENS_1921_3_38__341_0,
     author = {Fr\'echet, Maurice},
     title = {Sur les ensembles abstraits},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {341--388},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 38},
     year = {1921},
     doi = {10.24033/asens.735},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/asens.735/}
}