1. The nonlinear acceleration of a magnetic disturbance in the solar corona
2. Concerning the origin of evershed motion in sunspots
3. A.N. Kikhonov, “Methods of Mathematical Physics” (Chinese Translation) Volume 2, p.534.
4. “Peking University “Methods of Calculation” (in Chinese), Peking University, Vol. 1, p.39.
5. T. Gold, NASA sp-50, Physics of solar flares, p.389.