7Shy O., Thisse J. A strategic approach to software protection [J]. Journal of Economics & Management Strategy ,1999,(8):163-190.
8Minjeong Kim. The creative commons and copyright protection in the digital era: uses of creative commons licenses[J]. Journal of Computer-Mediated Communication, 2008:187-209.
9Roman Heidinger. Patent protection of software in Europe [J] MR-Int, 2004,(1 ):57-65.
10Michael Stolpe. Protection against software piracy: a study of technology adoption for the enforcement of intellectual property rights[J]. Economic Innovation and New Technology, 2000,(9):25-32.
