1. The ring current, geomagnetic disturbance, and the Van Allen radiation belts
2. A theory of magnetic storms and of the aurorae;Alfvén H.;K. Sven. Vetenskapakad. Handl., Ser. 3,1939
3. A theory of magnetic storms and of the aurorae, II, The aurorae; III, The magnetic disturbances;Alfvén H.;K. Sven. Vetenskapakad. Handl., Ser. 3,1940
4. Existence of Electromagnetic-Hydrodynamic Waves
5. Inward motion of the magnetopause before a substorm