@article{BSMF_1890__18__138_1,
     author = {B\'eghin},
     title = {Note sur le cercle de {Joachimsthal}},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {138--140},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {18},
     year = {1890},
     doi = {10.24033/bsmf.412},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/bsmf.412/}
}