Banach Center Publications > 2000 > 52 > 1 > 189-212
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journal ISSN : | 0137-6934 |
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Bibliography
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[1] P. Brenner, On estimates for the wave-equation, Math. Zeitschrift 145 (1975), 251-254.
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[2] P. Brenner, On the existence of global smooth solutions of certain semi-linear hyperbolic equations, Math. Zeitschrift 167 (1979), 99-135.
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[3] A. Grigis and J. Sjöstrand, Microlocal Analysis for Differential Operators. An Introduction, London Mathematical Society Lecture Note Series, Vol.196, University Press, Cambridge, 1994.