The theory of direct scattering and inverse scattering was advanced by the author of Progress in Optics.
Progress in Optics are a series of books edited by Emil Wolf published by Elsevier. 
Emil Wolf (born July 30, 1922) is a Czech born American physicist who made advancements in physical optics, including diffraction, coherence properties of optical fields, spectroscopy of partially coherent radiation, and the theory of direct scattering and inverse scattering. 
