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author_ss:"Lehmler, W."
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year_i:[1980 TO 1990}
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theme_ss:"Informationsdienstleistungen"
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language_ss:"d"
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Gloeckner-Rist, A.; Lehmler, W.; Wettler, M.: Endnutzerrecherchen in bibliographischen CD-ROM-Datenbanken (1989)
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