@article{GDZPPN002196190,
title = {On R\'edei's theory of the Pell equation.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {310},
year = {1979},
pages = {373-398},
zbl = {0395.12018},
url = {http://dml.mathdoc.fr/item/GDZPPN002196190}
}
Morton, Patrick. On Rédei's theory of the Pell equation.. Journal für die reine und angewandte Mathematik, Tome 310 (1979) pp. 373-398. http://gdmltest.u-ga.fr/item/GDZPPN002196190/