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Norris, M.; Oppenheim, C.; Rowland, F.: ¬The citation advantage of open-access articles (2008)
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Oppenheim, C.: ¬The implications of copyright legislation for electronic access to journal collections (1994)
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- Journal of document and text management. 2(1994) no.1, S.10-22
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Oppenheim, C.: ¬An agenda for action to achieve the information society in the UK (1996)
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Oppenheim, C.: Intellectual property : legal and other issues (1997)
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Oppenheim, C.: Electronic scholarly publishing and open access (2009)
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Levitt, J.M.; Thelwall, M.; Oppenheim, C.: Variations between subjects in the extent to which the social sciences have become more interdisciplinary (2011)
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Norris, M.; Oppenheim, C.: ¬The h-index : a broad review of a new bibliometric indicator (2010)
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