Junchao Xiao Qing Wang Mingshu Li Ye Yang Fan Zhang Lizi Xie A constraint-driven human resource scheduling method in software development and maintenance process. 17-26 2008 ICSM http://dx.doi.org/10.1109/ICSM.2008.4658050 conf/icsm/2008 db/conf/icsm/icsm2008.html#XiaoWLYZX08