Yongyan Zheng Jiong Zhou Paul Krause Analysis of BPEL Data Dependencies. 351-358 2007 conf/euromicro/2007 EUROMICRO-SEAA http://doi.ieeecomputersociety.org/10.1109/EUROMICRO.2007.17 db/conf/euromicro/euromicro2007.html#ZhengZK07