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Carson, S.M.; Freivalds, D.I.: Z39.50 and LIAS : Penn State's experience (1993)
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- Information technology and libraries. 12(1993) no.2, S.230-237
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Freivalds, D.I.; Carson, S.M.: ¬The role of microcomputers in the evolution of the OPAC (1991)
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- Library software review. 10(1991), S.110-114