1. Abbey , J. D. V. D. R. Guide Jr. M. G. Meloy S. Atalay 2011 Consumer perceptions of multiple lifecycle products Pennsylvania State University Pennsylvania
2. Agrawal , V. A. Atasu K. van Ittersum 2011 The effect of remanufacturing on the perceived value of new products Georgetown University Washington, DC
3. A new look at the statistical model identification;Akaike;IEEE Trans. Autom. Control,1974
4. Apple 2011 iPhone environmental reports for various models downloaded from apple.com http://images.apple.com/environment/reports/docs/iPhone_3GS-Environmental-Report.pdf http://images.apple.com/environment/reports/docs/iPhone4_Product_Environmental_Report_2011.pdf http://images.apple.com/environment/reports/docs/iPhone4S_Product_Environmental_Report_2011.pdf http://images.apple.com/environment/reports/docs/iPhone5_product_environmental_report_sept2012.pdf
5. AT&T 2009 Phone interview with Erika Thompson-Kemp