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GEOMAGNETIC PROBLEMS AND THE INTERNAL STRUCTURE OF THE EARTH,
DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)
Some of the problems of geomagnetic secular variation are briefly considered.
Trans. of Akademiya Nauk SSSR. Geofizicheskii Institut. Trudy, 1955, no. 26(153) p. 208-210. Also available from NRC as C-3203.