Electronic Journal of Differential Equations, Conference 09 (2002), pp. 65-76. Title: Stationary Solutions for a Schr\"odinger-Poisson System in $\mathbb{R}^3$ Authors: Khalid Benmlih (Univ. Sciences Fez, Morocco) Abstract: Under appropriate, almost optimal, assumptions on the data we prove existence of standing wave solutions for a nonlinear Schr\"odinger equation in the entire space $\mathbb{R}^3$ when the real electric potential satisfies a linear Poisson equation. Published December 28, 2002. Math Subject Classifications: 35J50, 35Q40. Key Words: Schrodinger equation; Poisson equation; standing wave solutions; variational methods.