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Bordley, Robert F. (1985). "Relating Elasticities to Changes in Demand". Journal of Business & Economic Statistics. 3 (2): 156–158. doi:10.2307/1391869. JSTOR1391869.
LIU, HONGJU (2010). "Dynamics of Pricing in the Video Game Console Market: Skimming or Penetratio". Journal of Marketing Research. 47 (3): 428–43. doi:10.1509/jmkr.47.3.428. JSTOR25674441. S2CID153931398.
LIU, HONGJU (2010). "Dynamics of Pricing in the Video Game Console Market: Skimming or Penetratio". Journal of Marketing Research. 47 (3): 428–43. doi:10.1509/jmkr.47.3.428. JSTOR25674441. S2CID153931398.