@article{NAM_1924_5_3__1_0,
     author = {Fr\'echet, Maurice},
     title = {La semi-continuit\'e en g\'eom\'etrie \'el\'ementaire},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {1--9},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {5e s{\'e}rie, 3},
     year = {1924},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1924_5_3__1_0/}
}