1. A theory of magnetic storms and of the aurorae;Alfvén;K. Sven. Vetenskapakad. Handl., Ser. 3,1939
2. A theory of magnetic storms and of the aurorae, II, The aurorae; III, The magnetic disturbances;Alfvén;K. Sven. Vetenskapakad. Handl., Ser. 3,1940
3. Wireless studies of the ionosphere;Appleton;Proc., Inst. Elec. Engrs.,1932