求助，文献的DOI

Question

Schwepker, C.H.; Cornwell, T.B. An examination of ecologically concerned consumers and their intention to purchase ecologically packaged products. J. Public Policy Mark. 1991, 10, 77-101
Bei, L. T.; Simpson, E.M. The determinants of consumers' purchase decision for recycled products: An application of acquisition-transaction utility theory. Adv. Consum. Res. 1995, 22, 257-261
Ali, M.; Amir, M. Pro-environmental products: marketing influence on consumer purchase decision. Arab. J. Bus. Manage. Rev. 2016, 5, 1-15.

Answer 1

Schwepker, C., & Cornwell, T. (1991). An Examination of Ecologically Concerned Consumers and Their Intention to Purchase Ecologically Packaged Products. Journal of Public Policy & Marketing, 10(2), 77-101. Retrieved from http://www.jstor.org/stable/30000237