@article{PPN362162050_0078+dmdlog33, title = {The Two-Dimensional Diophantine Approximation Constant.}, journal = {Monatshefte f\"ur Mathematik}, volume = {78}, year = {1974}, pages = {297-304}, zbl = {0294.10023}, url = {http://dml.mathdoc.fr/item/PPN362162050_0078+dmdlog33} }
Cusick, T.W. The Two-Dimensional Diophantine Approximation Constant.. Monatshefte für Mathematik, Tome 78 (1974) pp. 297-304. http://gdmltest.u-ga.fr/item/PPN362162050_0078+dmdlog33/