D. Tripathi, N. S. Rathore, V. Kakkar, and K. Walia, “Self-Focusing Dynamics of Cosh-Gaussian Laser Beams in Absorptive Cold Quantum Plasma Under Relativistic and Ponderomotive Nonlinearities”, East Eur. J. Phys., no. 1, pp. 127-133, Mar. 2026.