@article{BSMF_1980__108__137_0,
     author = {Wilson, S.M.J.},
     title = {Limit points in the {Lagrange} spectrum of a quadratic field},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {137--141},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {108},
     year = {1980},
     doi = {10.24033/bsmf.1913},
     mrnumber = {82m:10056},
     zbl = {0445.10024},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1913/}
}