@article{GDZPPN002485850, title = {On a Conjecture of Zaremba.}, journal = {Monatshefte f\"ur Mathematik}, volume = {104}, year = {1987}, pages = {133-138}, zbl = {0626.10006}, url = {http://dml.mathdoc.fr/item/GDZPPN002485850} }
Sander, J.W. On a Conjecture of Zaremba.. Monatshefte für Mathematik, Tome 104 (1987) pp. 133-138. http://gdmltest.u-ga.fr/item/GDZPPN002485850/