@article{10_4153_CJM_1973_059_3,
     author = {Davis, Nancy and Kinney, J. R.},
     title = {Quadratic {Irrationals} in the {Lower} {Lagrange} {Spectrum}},
     journal = {Canadian journal of mathematics},
     pages = {578--584},
     year = {1973},
     volume = {25},
     number = {3},
     doi = {10.4153/CJM-1973-059-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-059-3/}
}