Analysis of Medical Devices Design Requirements. - Ming-Bin Chen; Zhen Yu Chen 001; Lan Kong; Yong Zeng 004 (Trans. SDPS, 2005)

Classification of Product Requirements Based on Product Environment. - Zhen Yu Chen 001; Yong Zeng 004 (Concurr. Eng. Res. Appl., 2006)

Formalisation of product requirements: from natural language descriptions to formal specifications. - Zhen Yu Chen 001; Shengji Yao; Jian Qiang Lin; Yong Zeng 004; Armin Eberlein (Int. J. Manuf. Res., 2007)