@article{1183532222, author = {Gragg, W. B.}, title = {Truncation error bounds for $\pi$-fractions}, journal = {Bull. Amer. Math. Soc.}, volume = {76}, number = {4}, year = {1970}, pages = { 1091-1094}, language = {en}, url = {http://dml.mathdoc.fr/item/1183532222} }
Gragg, W. B. Truncation error bounds for $\pi$-fractions. Bull. Amer. Math. Soc., Tome 76 (1970) no. 4, pp. 1091-1094. http://gdmltest.u-ga.fr/item/1183532222/