Gureyev, T. E.Mayo, S.Paganin, D.Stevenson, A. W.Wilkins, S. W.2004-12-142004-12-1420012001http://hdl.handle.net/2003/1877710.17877/DE290R-6585enThe American Physical SocietyPhysical Review Letters530Quantitative In-Line Phase-Contrast Imaging with Multienergy X Rays10.1103/PhysRevLett.86.5827article (journal)