البحث الحادى عشر
11- Mohamed M. Mousa and A. Kaltayev, Application of He’s homotopy perturbation method for solving fractional Fokker–Planck equations, Zeitschrift für Naturforschung A (A Journal of Physical Sciences), Vо1. 64a № 12 (2009), 788–794.
Paper link: https://www.degruyter.com/view/j/zna.2009.64.issue-12/zna-2009-1203/zna-2009-1203.xml