%0 Journal Article %A Benoaga, Laurentiu %T Long time existence problems for semilinear Klein–Gordon equations %J Comptes Rendus. Mathématique %D 2008 %P 149-154 %V 346 %N 3-4 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2007.11.012/ %R 10.1016/j.crma.2007.11.012 %G en %F CRMATH_2008__346_3-4_149_0