%0 Journal Article %T The Best Constant of Sobolev Inequality Corresponding to Clamped Boundary Value Problem %A Kohtaro Watanabe %A Yoshinori Kametaka %A Hiroyuki Yamagishi %A Atsushi Nagai %J Boundary Value Problems %D 2011 %I Springer %R 10.1155/2011/875057 %U http://dx.doi.org/10.1155/2011/875057