1. Alan, D. (2012). The hows, whys, and dirty secrets of review game embargoes: A guide to what it all means. Penny Arcade Report., http://www.penny-arcade.com/report/article/the-hows-whys-and-dirty-secrets-of-review-game-embargoes-a-guide-to-what-it . Accessed 13 May 2014.
2. Bagwell, K., & Riordan, M.H. (1991). High and declining prices signal product quality. The American Economic Review, 81(1), 224–239.
3. Brown, A.L., Camerer, C.F., Lovallo, D. (2012). To review or not to review? Limited strategic thinking at the movie box office. American Economic Journal: Microeconomics, 4(2).
4. Caillaud, B., & Hermalin, B. (1993). The use of an agent in a signalling model. Journal of Economic Theory, 60(1), 83–113.
5. Campbell, J.D. (2012). Targeting informative messages to a network of consumers. Review of Network Economics, 11(3).