Liping Ding Qiusong Yang Liang Sun Jie Tong Yongji Wang Evaluation of the Capability of Personal Software Process Based on Data Envelopment Analysis. 235-248 2005 conf/ispw/2005 ISPW http://dx.doi.org/10.1007/11608035_21 db/conf/ispw/ispw2005.html#DingDSTW05