@article{02220834,
title = {Smoothing properties in multistep backward difference method and time derivative approximation for linear parabolic equations.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {2005},
year = {2005},
pages = {523-536},
doi = {10.1155/IJMMS.2005.523},
zbl = {1082.65092},
language = {en},
url = {http://dml.mathdoc.fr/item/02220834}
}
Yan, Yubin. Smoothing properties in multistep backward difference method and time derivative approximation for linear parabolic equations.. International Journal of Mathematics and Mathematical Sciences, Tome 2005 (2005) pp. 523-536. doi : 10.1155/IJMMS.2005.523. http://gdmltest.u-ga.fr/item/02220834/