1. Akasofu, S.-I., C.-I. Meng, and D.S. Kimball, 1963, Dynamics of the aurora, 6, Formation of patches and their eastward motion, J. Atmos. Terr. Phys.,28, 505.
2. Akasofu, S.-I., 1968, Polar and Magnetospheric Substorms, Preface, D. Reidel Publ. Comp. Dordrecht.
3. Alfvén. H., 1939, 1940, Theory of Magnetic storms, I, Kungl. Svenska Vetenskapsakademiens Handlingar (3), 18, No 3; II, III, ibid 18. No 9.
4. Alfvén, H., 1940, On the motion of a charged particle in a magnetic field, Ark. f. mat., astron. och fysik, 27A, No. 22.
5. Alfvén, H., 1955, On the electric field theory of magnetic storms and aurorae, Tellus, 7, 50. Alfvén, H., 1958, On the theory of magnetic storms and aurorae, Tellus, 10, 104.