Wunner, G., H. Cartarius, P. Koeberle, J. Main, and S. Rau. “Exceptional Points for Nonlinear Schroedinger Equations Describing Bose-Einstein Condensates of Ultracold Atomic Gases”. Acta Polytechnica 51, no. 4 (January 4, 2011). Accessed May 12, 2025. https://ojst.is.cvut.cz/ojs/index.php/ap/article/view/1418.