@article{1102735071,
author = {Heller, Robert and Roach, F. A.},
title = {A generalization of a classical necessary condition for convergence of continued fractions.},
journal = {Pacific J. Math.},
volume = {97},
number = {2},
year = {1981},
pages = { 307-310},
language = {en},
url = {http://dml.mathdoc.fr/item/1102735071}
}
Heller, Robert; Roach, F. A. A generalization of a classical necessary condition for convergence of continued fractions.. Pacific J. Math., Tome 97 (1981) no. 2, pp. 307-310. http://gdmltest.u-ga.fr/item/1102735071/