@article{BSMF_1910__38__273_0,
     author = {de Sparre},
     title = {Note au sujet du pendule conique},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {273--279},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {38},
     year = {1910},
     doi = {10.24033/bsmf.865},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.865/}
}