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Existence and uniqueness for a nonlinear dispersive equation. Vera Villagrán, Octavio Paulo — 2002 Divulgaciones Matemáticas
Exact boundary controllability for higher order nonlinear Schrödinger equations with constant coefficients. Ceballos V., Juan Carlos; Pavez F., Ricardo; Villagrán, Octavio Paulo Vera — 2005 Electronic Journal of Differential Equations (EJDE) [electronic only]