Search (2 results, page 1 of 1)
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author_ss:"Lorenzen, M."
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theme_ss:"Informationsdienstleistungen"
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language_ss:"e"
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year_i:[1990 TO 2000}
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Lorenzen, M.: Using the Internet for reference service (1995)
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Lorenzen, M.: Management by wandering around : reference rovering and quality reference service (1998)
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