Zhj2002a
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J. Zhang, Sharp conditions of global existence for nonlinear Schrodinger and Klein-Gordon equations. Nonlinear Analysis: Theory Methods and Applications, 48(2002): 191-207.
J. Zhang, Sharp conditions of global existence for nonlinear Schrodinger and Klein-Gordon equations. Nonlinear Analysis: Theory Methods and Applications, 48(2002): 191-207.