1. The concept of advanced design technology;Dai;Water Conservancy & Electric Machinery,2003
2. Rapid response engineering and rapid product design strategy;Zhong;Machine Design and Research,1999
3. Secondary development of UG;Wu jia-zhou;Machine Tool & Hydraulics,2001
4. Research on synthetical development of UG/OPEN;Hu xin-lei;Modern Computer,2008
5. Establish mechanical products CAD system using the parametric technology;Lin Feng;China Mechanical Engineering,1995