1. A proposed model for the International Geomagnetic Reference Field, 1965;Cain;J. Geomagn. Geoelec., Kyoto,1967
2. Cain , J. C. S. J. Cain Derivation of the International Geomagnetic Reference Field [IGRF(10/68)] Greenbelt, Md. 1968
3. Cain , J. C. R. A. Langel The geomagnetic survey by the Polar Orbiting Geophysical Observatories OGO-2 and OGO-4 1965-1967 Greenbelt, Md. 1968
4. Rocket measurements of Sq currents at midlatitude;Davis;J. Geophys. Res.,1965
5. A latitude survey of the equatorial electrojet with rocket-borne magnetometers;Davis;J. Geophys. Res.,1967