Hua, Zhongsheng; He, Ping; Bian, Yiwen Improving eco-efficiency of a system through allocation of non-discretionary input. (English) Zbl 1144.90412 Int. J. Inf. Manage. Sci. 19, No. 1, 75-91 (2008). MSC: 90B50 PDFBibTeX XMLCite \textit{Z. Hua} et al., Int. J. Inf. Manage. Sci. 19, No. 1, 75--91 (2008; Zbl 1144.90412)
Hua, Zhongsheng; Bian, Yiwen DEA with undesirable factors. (English) Zbl 1170.90416 Zhu, Joe (ed.) et al., Modeling data irregularities and structural complexities in data envelopment analysis. New York, NY: Springer (ISBN 978-0-387-71606-0/hbk). 103-121 (2007). MSC: 90B50 PDFBibTeX XMLCite \textit{Z. Hua} and \textit{Y. Bian}, in: Modeling data irregularities and structural complexities in data envelopment analysis. New York, NY: Springer. 103--121 (2007; Zbl 1170.90416)