erc: who: Campbell, B. what: Production data on 0.55 eV InGaAs thermophotovoltaic cells when: 19960501 where: https://digital.library.unt.edu/ark:/67531/metadc677189/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/