Hadsell, Frank, 1929-Lin, Hung-Liang2023-05-082023-05-081981https://hdl.handle.net/11124/176743Includes bibliographical references (pages 56-59).doctoral dissertationsengCopyright of the original work is retained by the author.Scattering (Physics)Inverse problems (Differential equations)Prospecting -- Geophysical methodsText