Igor Moret. Rational Lanczos approximations to the matrix square root and related functions. Numerical Lin. Alg. with Applic., 16(6):431-445, 2009. [doi]
@article{Moret09,
title = {Rational Lanczos approximations to the matrix square root and related functions},
author = {Igor Moret},
year = {2009},
doi = {10.1002/nla.625},
url = {http://dx.doi.org/10.1002/nla.625},
researchr = {https://researchr.org/publication/Moret09},
cites = {0},
citedby = {0},
journal = {Numerical Lin. Alg. with Applic.},
volume = {16},
number = {6},
pages = {431-445},
}