@article{10_4007_annals_2008_167_575,
     author = {Stephen Keith and Xiao Zhong},
     title = {The {Poincar\'e} inequality is an open ended condition},
     journal = {Annals of mathematics},
     pages = {575--599},
     publisher = {mathdoc},
     volume = {167},
     number = {2},
     year = {2008},
     doi = {10.4007/annals.2008.167.575},
     mrnumber = {2415381},
     zbl = {1180.46025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2008.167.575/}
}