Wang, Xin, Zhang, Yanchun and Shi, Hao (2008) Access Control for Human Tasks in Service Oriented Architecture. In: IEEE International Conference on e-Business Engineering : ICEBE 2008 ; Xi'an, China, 22 - 24 October 2008. Chung, Jen-Yao and Younas, Muhammad, eds. IEEE Computer Society, Los Alamitos, California, pp. 455-460.