referências

[1] Pramod A. Jamkhedkar, Gregory L. Heileman e Ivan Martinez-Ortiz, “Middleware Services for DRM”, disponível em: http://www.researchgate.net/publication/221631614_Middleware_Services_for_DRM/links/0deec51eeb1e9e17af000000

[2] Goldreich Oded. Foundations of Cryptography: Volume 2, Basic Applications. Vol. 2. Cambridge university press, 2004.

[3] Frank Y. Shih: Digital watermarking and steganography: fundamentals and techniques. Taylor & Francis, Boca Raton, FL, USA, 2008

[4] Sobel, Lionel S., “DRM as an Enabler of Business Models: ISPs as Digital Retailers” [Consult. 29 Novembro.2014], disponível em: http://www.quicktopic.com/19/D/RkCdhaVqwpBck.html

[5] Comissão das Comunidades Europeias (2001, Maio), “Direito de autor e direitos conexos na sociedade da informação”, disponível em: http://europa.eu/legislation_summaries/information_society/data_protection/l26053_pt.htm

[6] A. C. Mendes. (2014, Agosto, 22). “Lei da Cópia Privada”, disponível em: http://www.jornaldenegocios.pt/empresas/detalhe/lei_da_copia_privada_o_que_e_que_vai_ser_taxado.html

[7] B. Stone. (2009, Julho, 17). Amazon Erases Orwell Books From Kindle. Disponível em: http://www.nytimes.com/2009/07/18/technology/companies/18amazon.html?_r=0

[8] C. Mcsherry. (2014, Outubro, 7), “Adobe Spyware Reveals (Again) the Price of DRM: Your Privacy and Security”, disponível em: https://www.eff.org/deeplinks/2014/10/adobe-spyware-reveals-again-price-drm-your-privacy-and-security

[9] A. C. Mendes. (2014, Agosto, 22), “Lei da Cópia Privada”, disponível em: http://www.jornaldenegocios.pt/empresas/detalhe/lei_da_copia_privada_o_que_e_que_vai_ser_taxado.html

[10]“Digital Rights Management: Dead or Just Evolving?”, disponível em: http://knowledge.wharton.upenn.edu/article/digital-rights-management-dead-or-just-evolving/

[11] Ruenzel, Nancy Aldrich, “Lite vs. Heavy DRM: Customers are voting with their dollars”, [Consult. 29 Novembro.2914], disponível em:
http://www.peachpit.com/blogs/blog.aspx?uk=Locked-Unlocked-Content-wants-to-be-customer-friendly