Darweesh, H. F., E. M. Abulwafa, and A. M. El-Hanbaly. “ARBITRARY AMPLITUDE NONLINEAR WAVES IN A FOUR COMPONENT QUANTUM PLASMA”. International Journal of Mathematics and Physics, vol. 13, no. 1, June 2022, pp. 60-74, doi:10.26577/ijmph.2022.v13.i1.07.