erc: who: Wolf, Kay what: The Tracings, Volume 15, Number 3, November 1996 when: 19961100 where: https://texashistory.unt.edu/ark:/67531/metapth37952/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://texashistory.unt.edu/ark:/67531/