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Schäpers, K.: Umfang und Grenzen des Informationsdienstes in Öffentlichen Bibliotheken : Empfehlungen und Diskussionen (1991)
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Miller, S.: Privacy, data bases and computers (1998)
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O'Neil, R.M.: Free speech in cyberspace (1998)
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Aghemo, A.: Etica professionale e servizio di informazione (1993)
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