erc: who: Jacks, G. M. what: Advanced Test Reactor: Final Shielding Design Report when: 19631200 where: https://digital.library.unt.edu/ark:/67531/metadc67316/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/