@article{1077472971, author = {Lane, Ralph E.}, title = {The value region problem for continued fractions}, journal = {Duke Math. J.}, volume = {12}, number = {1}, year = {1945}, pages = { 207-216}, language = {en}, url = {http://dml.mathdoc.fr/item/1077472971} }
Lane, Ralph E. The value region problem for continued fractions. Duke Math. J., Tome 12 (1945) no. 1, pp. 207-216. http://gdmltest.u-ga.fr/item/1077472971/