@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/