@article{05632440, title = {Sharp condition for global existence and blow-up on Klein-Gordon equation.}, journal = {Mathematical Problems in Engineering}, volume = {2009}, year = {2009}, doi = {10.1155/2009/164303}, zbl = {1184.35073}, language = {en}, url = {http://dml.mathdoc.fr/item/05632440} }
Junsheng, Zhao; Shufeng, Li. Sharp condition for global existence and blow-up on Klein-Gordon equation.. Mathematical Problems in Engineering, Tome 2009 (2009) . doi : 10.1155/2009/164303. http://gdmltest.u-ga.fr/item/05632440/