@article{NAM_1910_4_10__217_1,
     author = {Fonten\'e, G.},
     title = {Sur les nombres de la forme $X^2+XY+Y^2$},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {217--221},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {4e s{\'e}rie, 10},
     year = {1910},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1910_4_10__217_1/}
}