%0 Journal Article
%A Guan, Qiʼan
%A Zhou, Xiangyu
%T An $ {L}^{2}$ extension theorem with optimal estimate
%J Comptes Rendus. Mathématique
%D 2014
%P 137-141
%V 352
%N 2
%I Elsevier
%U http://www.numdam.org/articles/10.1016/j.crma.2013.12.007/
%R 10.1016/j.crma.2013.12.007
%G en
%F CRMATH_2014__352_2_137_0