Arivazhagan, G.; Elangovan, R.; Sathiyamoorthi, R. Determination of optimal manpower reserve when demand for manpower has fluctuations. (English) Zbl 1254.90090 Bull. Pure Appl. Sci. E, Math. Stat. 29, No. 2, 243-248 (2010). MSC: 90B60 Marketing, advertising PDFBibTeX XMLCite \textit{G. Arivazhagan} et al., Bull. Pure Appl. Sci. E, Math. Stat. 29, No. 2, 243--248 (2010; Zbl 1254.90090)