The Interaction Picture method for solving the generalized nonlinear Schrödinger equation in opticsStéphane Balac, Arnaud Fernandez, Fabrice Mahé, Florian Méhats and Rozenn Texier-PicardESAIM: M2AN, 50 4 (2016) 945-964DOI: https://doi.org/10.1051/m2an/2015060