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Stock Options and Capital Structure.
Macminn, R.D., (2001)
DEA evaluations of long- and short-run efficiencies of digital vs. physical product "dot com" companies
Barua, Anitesh, (2004)
D: MATHEMATICAL PROGRAMMING - Identification of Pareto-efficient facets in data envelopment analysis
Brockett, P.L., (1999)