erc: who: Amico, P. J. what: Seismic margin reviews of nuclear power plants: Identification of important functions and systems when: 19870210 where: https://digital.library.unt.edu/ark:/67531/metadc1210893/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/