@article{TVP_2003_48_3_a12,
     author = {O. Johnson},
     title = {Convergence of the {Poincar\'e} constant},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {615--620},
     year = {2003},
     volume = {48},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TVP_2003_48_3_a12/}
}