erc: who: Segaser, C L what: Heat Exchanger Design Study for the ISHR when: 19521022 where: https://digital.library.unt.edu/ark:/67531/metadc1024547/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/