[3]Xiaoning Xu, Feng He, Rong Chen, Qingzhi Zhang. Solving non-linear portfolio optimization problems with interval analysis. Journal of the Operational Research Society.2014.[3]
[6] Feng He, Qingzhi Zhang*, Jiasu Lei. Energy efficiency and productivity change of China’s iron and steel industry: Accounting for undesirable outputs [J]. Energy Policy,2013(54):204-213.[6]
[14] Qingzhi Zhang, Ashley J. Stevens. The Contribution of Public Sector Research outside the US to the Discovery of New Drugs and Vaccines[14]. Triple Helix IX International Conference, 11th to 14th July, 2011 in Stanford University, CA, USA.
[15] ZHANG Qingzhi, HE Feng, ZHAO Xiao. Study on the Supply Chain Inventory under Electronic Commerce Base on System Dynamics. 2010 International Conference on E-Business and E-Government[15](ICEE2010), May 7th to 9th, 2010 in Guangzhou, China. P4667-4670.