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Simmonds, A.: ¬The 21st century ISBN (1997)
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Berinstein, P.: DOI: a new identifier for digital content (1998)
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Lynch, C.: Identifiers and their role in networked information applications (1998)
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Morgan, C.: ¬The DOI (Digital Object Identifier) (1998)
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Digital Object Identifiers (1998)
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Bide, M.: In search of the Unicorn : The Digital Object Identifier from a user perspective (1997)
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Simmonds, A.: ¬The Digital Object Identifier (DOI) System (1998)
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Simmonds, A.: ¬The twenty-first century ISBN (1998)
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TIB weltweit erste zentrale Registrierungsagentur für Primärdaten (2005)
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Paskin, N.: DOI: a 2003 progress report (2003)
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Brand, A.: CrossRef turns one (2001)
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Atkins, H.; Lyons, C.; Ratner, H.; Risher, C.; Shillum, C.; Sidman, D.; Stevens, A.: Reference linking with DOIs : a case study (2000)
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Paskin, N.: DOI: current status and outlook (1999)
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