“Novel Quasi-Periodic Type Optical Solitons and the Formation of Fractal Structures in Non-integrable Nonlinear Helmholtz Equations with Phase Portraits and Chaotic Analysis”, Eur. J. Pure Appl. Math., vol. 18, no. 4, p. 6764, Nov. 2025, doi: 10.29020/nybg.ejpam.v18i4.6764.