erc: who: Santora, Norman J. what: Chemical Information Bulletin, Volume 57, Number 2, Fall 2005 when: 2005 where: https://digital.library.unt.edu/ark:/67531/metadc5620/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/