erc: who: Peterman, Z.E. what: Geochemically Homogeneous Tuffs Host the Potential Nuclear Waste Repository, Yucca Mountain, Nevada when: 20010713 where: https://digital.library.unt.edu/ark:/67531/metadc734284/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/