1. Handbook of Mathematical Functions;Abramowitz,1972
2. Discussion of the origin of the terrestrial and Solar magnetic fields;Alfvén,1950
3. Magnetic field structure in the two-dimensional motion of a conducting fluid;Anufriyev,1982
4. Sur la topologie des écoulements stationnaires des fluides parfaits;Arnold;C. R. Acad. Sci., Paris,1965
5. The growth of a magnetic field in a three-dimensional steady incompressible flow;Arnold;Vestnik Moskov Univ. Ser. I, Mat. Mekh.,1983