@article{01613342, title = {Some discrete Poincar\'e-type inequalities.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {25}, year = {2001}, pages = {479-488}, doi = {10.1155/S0161171201005403}, zbl = {0984.39001}, language = {en}, url = {http://dml.mathdoc.fr/item/01613342} }
Cheung, Wing-Sum. Some discrete Poincaré-type inequalities.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 479-488. doi : 10.1155/S0161171201005403. http://gdmltest.u-ga.fr/item/01613342/