1. A Theory of Magnetic Storms and Aurorae, I;Alfvén;Kungl. Sv. Vetenskapsakad. Handl. (3),1939
2. A Theory of Magnetic Storms and Aurorae, II, III;Alfvén;Kungl. Sv. Vetenskapsakad. Handl. (3),1940
3. On the Electric Field Theory of Magnetic Storms and Aurorae;Alfvén;Tellus,1955