@article{NAM_1881_2_20__408_1, author = {R\'ealis, S.}, title = {D\'emonstration de propositions \'enonc\'ees}, journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale}, pages = {408--411}, publisher = {Carilian-Goeury et Vor Dalmont}, volume = {2e s{\'e}rie, 20}, year = {1881}, language = {fr}, url = {http://www.numdam.org/item/NAM_1881_2_20__408_1/} }