@article{NAM_1874_2_13__569_1,
     author = {de Coninck, G.},
     title = {Propri\'et\'es nouvelles des fractions d\'ecimales p\'eriodiques},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {569--571},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {2e s{\'e}rie, 13},
     year = {1874},
     language = {fr},
     url = {http://www.numdam.org/item/NAM_1874_2_13__569_1/}
}