@article{NUMA_1962__4_131517,
     author = {E. FRANK},
     title = {On continued fraction expansions for binomial quadratic surds.},
     journal = {Numerische Mathematik},
     pages = {85--95},
     year = {1962},
     volume = {4},
     zbl = {0107.10303},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1962__4_131517/}
}