@article{GDZPPN001172050,
title = {On the Extrapolation of Galerkin Methods for Parabolic Problems.},
journal = {Numerische Mathematik},
volume = {22},
year = {1974},
pages = {269-288},
zbl = {0282.65080},
url = {http://dml.mathdoc.fr/item/GDZPPN001172050}
}
Fairweather, G.; Johnson, J.P. On the Extrapolation of Galerkin Methods for Parabolic Problems.. Numerische Mathematik, Tome 22 (1974) pp. 269-288. http://gdmltest.u-ga.fr/item/GDZPPN001172050/