@article{JRAM_1840__20_147080,
     author = {C. Ramus},
     title = {Remarques sur les fractions continues p\'eriodiques.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {13--27},
     publisher = {mathdoc},
     volume = {20},
     year = {1840},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1840__20_147080/}
}