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language_ss:"e"
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theme_ss:"Informationsdienstleistungen"
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theme_ss:"Literaturübersicht"
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year_i:[1970 TO 1980}
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- author's%3a%22Poetzsch%2c E.%22 2
- authors%3a%22Poetzsch%2c E.%22 2
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Murfin, M.E.; Wynar, L.R.: Reference service : an annotated bibliographic guide (1977)
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Norman, O.G.: ¬The reference interview : an annotated bibliography (1979)
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