erc: who: Lau, K. H. what: Particle searches in e/sup +/e/sup -/ experiments at PEP and PETRA when: 19821001 where: https://digital.library.unt.edu/ark:/67531/metadc1208533/ erc-support: who: University of North Texas Libraries what: Permanent: Stable Content: when: 20081203 where: https://digital.library.unt.edu/ark:/67531/