Dzhunushaliev, V., V. Folomeev, R. Myrzakulov, and A. Urazalina. “Qualitative Analysis of the Eigenvalue Problem for Two Coupled Ginzburg-Landau Equations”. Recent Contributions to Physics, vol. 2015, no. 1, Apr. 2015, pp. 68-76, https://bph.kaznu.kz/index.php/zhuzhu/article/view/963.