Theorem 1 in Wynn, Peter «On the Convergence and Stability of the Epsilon Algorithm». SIAM Journal on Numerical Analysis, 3, 1, 3-1966, p. 91–122. DOI: 10.1137/0703007.
Brezenski, C. «Extrapolation algorithms and Padé approximations». Applied Numerical Mathematics, 20, 3, 1996, p. 299–318. DOI: 10.1016/0168-9274(95)00110-7.