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3. CAZENAVE,T., WEISSLER,F.B.: Some remarks on the nonlinear Schrödinger equation in the critical case. Proceedings of the Second Howard University Symposium on Nonlinear Semigroups, Partial Differential Equations, and Attractors. Washington, D.C., August 1987. Springer, to appear
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5. CAZENAVE,T., WEISSLER,F.B.: The Cauchy problem for the critical nonlinear Schrödinger equation in Hs. To appear