@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/