7Alexander Osterwalder & Yves Pigneur. (2010). Business Model Generation. Hoboken, NJ :John Wiley and Sore, Inc.. p14. 被引量:1
8Robert Picard. (1989). Media Economics:Concepts and Issues. Newbury Park,CA:Sage. p124. 被引量:1
9Alison Alexander et al. eds. (2004). Media Economics : Theory and Practice. 3rd ed. Mahwah, N. J : Lawrence Erlbaum. pp. 155 - 156. 被引量:1
10Sacha Wunsch-Vincent & Graham Vickery. (2010). The Evolution of News and the lnternet. Retrieved from http ://www. oecd. org/intemet/ ieconomy/45559596, pdf. 被引量:1