1. W. Bao and Q. Du, Computing the ground state solution of Bose–Einstein condensates by a normalized gradient flow. SIAM J. Sci. Comput. 25 (2004), 1674–1697.
2. H. Berestycki and T. Cazenave, Instabilité des états stationnaires dans les équations de Schrödinger et de Klein-Gordon non linéaires. C. R. Acad. Sci. Paris 293 (1981), 489–492.
3. M. Caliari, A. Ostermann, S. Rainer and M. Thalhammer, A minimisation approach for computing the ground state of Gross–Pitaevskii systems. J. Comput. Phys. 228 (2009), 349–360.
4. M. Caliari and M. Squassina, Numerical computation of soliton dynamics for NLS equations in a driving potential. Electron. J. Differential Equations 89 (2010), 1–12.
5. T. Cazenave and P. L. Lions, Orbital stability of standing waves for some nonlinear Schrödinger equations. Comm. Math. Phys. 85 (1982), 549–561.