@article{NAM_1906_4_6__222_1,
     author = {G\'erardin, A.},
     title = {Contribution \`a l{\textquoteright}\'etude de l{\textquoteright}\'equation $1. 2. 3. 4\ldots z+1=y^2$},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {222--226},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {4e s{\'e}rie, 6},
     year = {1906},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1906_4_6__222_1/}
}