@article{GDZPPN001184016,
title = {An L2-Error Estimate for an Approximation of the Solution of a Parabolic Variational Inequality.},
journal = {Numerische Mathematik},
volume = {58},
year = {1990},
pages = {453-472},
zbl = {0696.65069},
url = {http://dml.mathdoc.fr/item/GDZPPN001184016}
}
Vuik, C. An L2-Error Estimate for an Approximation of the Solution of a Parabolic Variational Inequality.. Numerische Mathematik, Tome 58 (1990) pp. 453-472. http://gdmltest.u-ga.fr/item/GDZPPN001184016/