@article{GDZPPN002389460,
title = {A two-parameter family of best twin convergence regions for continued fractions.},
journal = {Mathematische Zeitschrift},
volume = {73},
year = {1960},
pages = {295-311},
zbl = {0094.26701},
url = {http://dml.mathdoc.fr/item/GDZPPN002389460}
}
Thron, W.J.; Lange, L.J. A two-parameter family of best twin convergence regions for continued fractions.. Mathematische Zeitschrift, Tome 73 (1960) pp. 295-311. http://gdmltest.u-ga.fr/item/GDZPPN002389460/