Tong Li, Qiang Ye, Yijun Li. Does difference between direct and indirect visit matter?. In Robert J. Kauffman, Martin Bichler, Hoong Chuin Lau, Yinping Yang, Christopher C. Yang, editors, Fourteenth International Conference on Electronic Commerce, ICEC '12, Singapore, August 7-8, 2012. pages 278-279, ACM, 2012. [doi]
Abstract is missing.