@article{NAM_1863_2_2__337_0,
     author = {Geoffroy, C. and L'huilier, L.},
     title = {Solution de la question 642 {(Catalan)}},
     journal = {Nouvelles annales de math\'ematiques : journal des candidats aux \'ecoles polytechnique et normale},
     pages = {337--339},
     publisher = {Carilian-Goeury et Vor Dalmont},
     volume = {2e s{\'e}rie, 2},
     year = {1863},
     language = {fr},
     url = {http://archive.numdam.org/item/NAM_1863_2_2__337_0/}
}