@article{Hajaiej:130264, title = {On the variational approach to the stability of standing waves for the nonlinear Schrödinger equation}, author = {Hajaiej, Hichem and Stuart, Charles Alexander}, journal = {Adv. Nonlinear Stud.}, number = {4}, volume = {4}, pages = {469-501}, year = {2004}, url = {http://infoscience.epfl.ch/record/130264}, }