1. M. Asma, W. A. M. Othman, B. R. Wong, and A. Biswas, “Optical Soliton Perturbation with Quadratic-Cubic Nonlinearity by Semi-Inverse Variational Principle,” Proc. Roman. Acad. Ser. A. 18(4), 331 (2017).
2. M. Asma, W. A. M. Othman, B. R. Wong, and A. Biswas, “Optical Soliton Perturbation with Quadratic-Cubic Nonlinearity by the Method of Undetermined Coefficients,” J. Opt. Adv. Mater. 19(11−12), 699 (2017).
3. M. Asma, W. A. M. Othman, B. R. Wong, and A. Biswas, “Optical Soliton Perturbation with Quadratic-Cubic Nonlinearity by Traveling Wave Hypothesis,” Opt. Adv. Mater. Rapid Commun. 11(9−10), 517-(2017).
4. Hai-Qin Jin, “Self-Similar Asymptotic Optical Waves in Quintic Nonlinear Media with Distributed Coefficients,” Brazil. J. Phys. 45(4), 439 (2015).
5. P. J. Olver, Applications of Lie Groups to Differential Equations (Springer Verlag, N. Y., 1993), Vol. 107.