Shaoke Zhang Chen Zhao Qiang Zhang Hui Su Haiyan Guo Jie Cui Yingxin Pan Paul Moody Managing collaborative activities in project management. 3 2007 CHIMIT http://doi.acm.org/10.1145/1234772.1234791 conf/chimit/2007 db/conf/chimit/chimit2007.html#ZhangZZSGCPM07