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Are you Lawrence Colin, author of the books below?
Computed Times of Sunrise and Sunset in the Ionosphere by Lawrence Colin Electron densities and scale heights in the topside ionosphere by Lawrence Colin Mathematics of Profile Inversion by Lawrence Colin Electron densities and scale heights in the topside ionosphere by Lawrence Colin Pioneering Venus by Richard O. Fimmel Pioneer Venus by Richard O. Fimmel Venus by D.M. Hunten


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