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2005. A six-parameter statistical model of the Earth's magnetic field. Geophysical Journal International. 130:693-700. 10.1111/j.1365-246X.1997.tb01863.x AbstractWebsite

1997. On the difference between the average values of B-r(2) in the Atlantic and Pacific hemispheres. Geophysical Research Letters. 23:1965-1968. 10.1029/96gl01854 AbstractWebsite

1996. Is the non-dipole magnetic field random? Geophysical Journal International. 124:315-319. 10.1111/j.1365-246X.1996.tb06373.x AbstractWebsite

1996. Trimming and procrastination as inversion techniques. Physics of the Earth and Planetary Interiors. 98:101-142. 10.1016/s0031-9201(96)03183-4 AbstractWebsite

1996. Foundations of geomagnetism. :xiv,369p.., Cambridge England ; New York: Cambridge University Press AbstractWebsite

1996. Test of Newtons Inverse-Square Law in the Greenland Ice Cap. Physical Review Letters. 62:985-988. 10.1103/PhysRevLett.62.985 Website

1989. Confidence Set Inference with a Prior Quadratic Bound. Geophysical Journal-Oxford. 97:119-150. 10.1111/j.1365-246X.1989.tb00489.x Website

1989. The Field Lines of an Axisymmetric Magnetic-Field. Geophysical Journal-Oxford. 93:413-417. 10.1111/j.1365-246X.1988.tb03869.x Website

1988. Bayesian-Inference in Geomagnetism. Geophysical Journal-Oxford. 92:125-142. 10.1111/j.1365-246X.1988.tb01127.x Website

1988. Comparing Hard and Soft Prior Bounds in Geophysical Inverse Problems. Geophysical Journal-Oxford. 94:249-261. 10.1111/j.1365-246X.1988.tb05899.x Website

1988. Isotropic Probability-Measures in Infinite-Dimensional Spaces. Proceedings of the National Academy of Sciences of the United States of America. 84:8755-8757. 10.1073/pnas.84.24.8755 Website

1987. Comparing the Jerk with Other Global-Models of the Geomagnetic-Field from 1960 to 1978. Journal of Geophysical Research-Solid Earth and Planets. 92:3615-3622. 10.1029/JB092iB05p03615 Website

1987. The Region on the Core Mantle Boundary Where a Geostrophic Velocity-Field Can Be Determined from Frozen-Flux Magnetic Data. Geophysical Journal of the Royal Astronomical Society. 85:617-628. 10.1111/j.1365-246X.1986.tb04536.x Website

1986. Poloidal and Toroidal Fields in Geomagnetic-Field Modeling. Reviews of Geophysics. 24:75-109. 10.1029/RG024i001p00075 Website

1986. Some Models of the Geomagnetic-Field in Western-Europe from 1960 to 1980. Physics of the Earth and Planetary Interiors. 39:243-254. 10.1016/0031-9201(85)90137-2 Website

1985. Steady Flows at the Top of the Core from Geomagnetic-Field Models - the Steady Motions Theorem. Geophysical and Astrophysical Fluid Dynamics. 32:163-173. 10.1080/03091928508208783 Website

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Application of Mantle Filter Theory to the Magnetic Jerk of 1969. Geophysical Journal of the Royal Astronomical Society. 74:713-746.Website

1983. The Electric-Field Produced in the Mantle by the Dynamo in the Core. Physics of the Earth and Planetary Interiors. 28:191-214. 10.1016/0031-9201(82)90002-4 Website

1982. Harmonic Splines for Geomagnetic Modeling. Physics of the Earth and Planetary Interiors. 28:215-229. 10.1016/0031-9201(82)90003-6 Website

1982. Limits of Validity of 1st-Order Perturbation-Theory for Quasi-P Velocity in Weakly Anisotropic Media - Reply. Journal of Geophysical Research. 87:4641-4644. 10.1029/JB087iB06p04641 Website

1982. On the Relative Importance of the Driving Forces of Plate Motion. Geophysical Journal of the Royal Astronomical Society. 67:415-435. 10.1111/j.1365-246X.1981.tb02758.x Website

1981. L2 Form of Bernsteins Inequality. Proceedings of the National Academy of Sciences of the United States of America. 76:3061-3064. 10.1073/pnas.76.7.3061 Website

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