@article{NAM_1847_1_6__220_1,
     author = {Jub\'e, Eug\`ene},
     title = {Question sur des ellipses homofocales},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {220--221},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {1e s{\'e}rie, 6},
     year = {1847},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1847_1_6__220_1/}
}