@book{3272,
	author = {Craven, B. D. and Islam, Sardar M. N.,},
	title = {Optimization in economics and finance :},
	publisher = {Springer,},
	year = {2005.},
	address = {Dordrecht :},
	url = {http://www.loc.gov/catdir/toc/fy0704/2006355341.html}
}