@article{10_4064_aa_13_2_169_176,
     author = {H. Davenport and Wolfgang Schmidt},
     title = {Approximation to real numbers by quadratic irrationals},
     journal = {Acta Arithmetica},
     pages = {169--176},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {1967},
     doi = {10.4064/aa-13-2-169-176},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-13-2-169-176/}
}