@article{GDZPPN002276801, title = {Quadratic fields with and without Euclid's Algorithm}, journal = {Mathematische Annalen}, volume = {109}, year = {1934}, pages = {349-352}, zbl = {60.0933.03}, url = {http://dml.mathdoc.fr/item/GDZPPN002276801} }
Oppenheim, A. Quadratic fields with and without Euclid's Algorithm. Mathematische Annalen, Tome 109 (1934) pp. 349-352. http://gdmltest.u-ga.fr/item/GDZPPN002276801/