erc: who: Johansson, E M what: Image recovery techniques for x-ray computed tomography in limited data environments when: 19990301 where: https://digital.library.unt.edu/ark:/67531/metadc624723/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/