@article{GDZPPN001170325,
title = {On Finite Element Approximations to Time-Dependent Problems.},
journal = {Numerische Mathematik},
volume = {19},
year = {1972},
pages = {127-135},
zbl = {0244.65063},
url = {http://dml.mathdoc.fr/item/GDZPPN001170325}
}
Fix, G.; Nassif, N. On Finite Element Approximations to Time-Dependent Problems.. Numerische Mathematik, Tome 19 (1972) pp. 127-135. http://gdmltest.u-ga.fr/item/GDZPPN001170325/