Jinqiao Yu Y. V. Ramana Reddy Shufen Liu Zhilin Yao Vijayanand Bharadwaj Sumitra Reddy Srinivas Kankanahalli Adaptive collaboration in an ever-changing environment. 125-140 2008 4 Multiagent and Grid Systems 2 http://iospress.metapress.com/content/m443502141465625/ db/journals/mags/mags4.html#YuRLYBRK08