Jo1987
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F. John. Existence for large times of strict solutions of nonlinear wave equations in three space dimensions for small initial data. CPAM, 40 (1987), 79-109. MathSciNet, arXiv.
F. John. Existence for large times of strict solutions of nonlinear wave equations in three space dimensions for small initial data. CPAM, 40 (1987), 79-109. MathSciNet, arXiv.