M. Moshkelgosha, Z. Ashuri, and H. Tavakoli, “The Influence of Angular Frequencies on Self-Focusing of the Laser Beam in Magnetized Electron–Positron Plasma”, Acta Phys. Pol. A, vol. 147, no. 5, p. 364, May 2025, doi: 10.12693/APhysPolA.147.364.