erc: who: Ringwood, A.E. what: Investigations on SYNROC mineralogy. Progress report when: 19820121 where: https://digital.library.unt.edu/ark:/67531/metadc1091870/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/