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@article{JCA_2010_17_3_JCA_2010_17_3_a21, author = {D. Percivale}, title = {Upper and {Lower} {Bounds} for {Poincar\'e-type} {Constants} in {BH}}, journal = {Journal of convex analysis}, pages = {1089--1111}, publisher = {mathdoc}, volume = {17}, number = {3}, year = {2010}, url = {http://geodesic.mathdoc.fr/item/JCA_2010_17_3_JCA_2010_17_3_a21/} }
D. Percivale. Upper and Lower Bounds for Poincaré-type Constants in BH. Journal of convex analysis, Tome 17 (2010) no. 3, pp. 1089-1111. http://geodesic.mathdoc.fr/item/JCA_2010_17_3_JCA_2010_17_3_a21/