Akhtar, J., K. U. Tariq, M. M. Khater, A. Houwe, and M. Inc. “A Variety of Exact Solutions for Fractional (2+1)-Dimensional Heisenberg Ferromagnetic Spin Chain in the Semi Classical Limit”. Revista Mexicana De Física, vol. 67, no. 4 Jul-Aug, July 2021, pp. 040701 1-11, doi:10.31349/RevMexFis.67.040701.