@article{GDZPPN002181290,
title = {Continued fraction expansions and iterations of Newton's formula.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {218},
year = {1965},
pages = {62-66},
zbl = {0142.12503},
url = {http://dml.mathdoc.fr/item/GDZPPN002181290}
}
Sharma, A.; Frank, E. Continued fraction expansions and iterations of Newton's formula.. Journal für die reine und angewandte Mathematik, Tome 218 (1965) pp. 62-66. http://gdmltest.u-ga.fr/item/GDZPPN002181290/