TY - JOUR AU - Benoaga, Laurentiu TI - Long time existence problems for semilinear Klein–Gordon equations JO - Comptes Rendus. Mathématique PY - 2008 SP - 149 EP - 154 VL - 346 IS - 3-4 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.crma.2007.11.012/ DO - 10.1016/j.crma.2007.11.012 LA - en ID - CRMATH_2008__346_3-4_149_0 ER -