1. | | Autor: Wõber, Karl W. Coautor: ; Gretzel, Ulrike | |
2. | | Autor: Yuan, Yu-Lan Coautor: ; Gretzel, Ulrike Fesenmaier, Daniel R. | |
3. | | Autor: Zheng, Xiang Coautor: ; Gretzel, Ulrike | |
4. | | Autor: Woojin, Lee Coautor: ; Gretzel, Ulrike Law, Rob | |
5. | | Autor: Zheng, Xiang Coautor: ; Gretzel, Ulrike Fesenmaier, Daniel R. | |
6. | | Autor: Woojin, Lee Coautor: ; Gretzel, Ulrike | |
7. | | Autor: Yoon Jung, Lee Coautor: ; Gretzel, Ulrike | |