@article{GDZPPN001180185,
title = {On the Rate of Convergence of the Preconditioned Conjugate Gradient Method.},
journal = {Numerische Mathematik},
volume = {50},
year = {1986},
pages = {499-524},
zbl = {0564.65017},
url = {http://dml.mathdoc.fr/item/GDZPPN001180185}
}
Axelsson, Owe; Lindskog, Gunhild. On the Rate of Convergence of the Preconditioned Conjugate Gradient Method.. Numerische Mathematik, Tome 50 (1986) pp. 499-524. http://gdmltest.u-ga.fr/item/GDZPPN001180185/