1987.

On the note emitted from a mug while mixing instant coffee. Proceedings of the Cambridge Philosophical Society-Mathematical and Physical Sciences. 65:365-367. AbstractWebsite

1969. Optimal one-dimensional inversion and bounding of magnetotelluric apparent resistivity and phase measurements. Physics of the Earth and Planetary Interiors. 98:269-282. 10.1016/s0031-9201(96)03191-3 AbstractWebsite

1996.