@article{NAM_1913_4_13__400_1,
     author = {Petrovitch, Michel},
     title = {Th\'eor\`emes de la moyenne sans restrictions},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {400--406},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {4e s{\'e}rie, 13},
     year = {1913},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1913_4_13__400_1/}
}