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Oppenheim, C.: ¬The legal problems associated with electronic copyright management systems (1996)
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Oppenheim, C.: Intellectual property : legal and other issues (1997)
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Oppenheim, C.: Document delivery and electronic copyright : what is copyright? (1995)
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Ibbotson, J.: Copyright protection of images in the digital environment (1997)
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Gasaway, L.N.: Scholarly publication and copyright in networked electronic publishing (1995)
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