@article{02156115,
title = {Discrete Sobolev and Poincar\'e inequalities for piecewise polynomial functions.},
journal = {ETNA. Electronic Transactions on Numerical Analysis [electronic only]},
volume = {18},
year = {2004},
pages = {42-48},
zbl = {1065.65128},
language = {en},
url = {http://dml.mathdoc.fr/item/02156115}
}
Brenner, Susanne C. Discrete Sobolev and Poincaré inequalities for piecewise polynomial functions.. ETNA. Electronic Transactions on Numerical Analysis [electronic only], Tome 18 (2004) pp. 42-48. http://gdmltest.u-ga.fr/item/02156115/