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Severiens, T.; Hohlfeld, M.; Zimmermann, K.; Hilf, E.R.: PhysDoc - a distributed network of physics institutions documents : collecting, indexing, and searching high quality documents by using harvest (2000)
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Robbio, A. de; Maguolo, D.; Marini, A.: Scientific and general subject classifications in the digital world (2001)
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Pinfield, S.: How do physicists use an e-print archive? : implications for institutional e-print services (2001)
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Daudaravicius, V.: ¬A framework for keyphrase extraction from scientific journals (2016)
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