1. Indication of a geomagnetic low-inclination excursion in supposed middle Weichselian interstadial marine clay at Rubjerg, Denmark;Abrahamsen;Earth Planet. Sci. Lett.,1979
2. Hydromagnetics of rotating fluids;Acheson;Rep. Prog. Phys.,1973
3. The complex magnetic field of Jupiter;Acuna;Science,1976
4. Geomagnetic field variation according to magnetic declination data for 1550–1960;Adam;Geomag. Aeron.,1970
5. Spherical harmonic analysis of delination and secular geomagnetic variation 1550–1960;Adam;Earth Planet. Sci. Lett.,1970