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Directional distance functions and undesirable outputs
Chung, Yangho, (1996)
The value of convertibility : paper presented at the Annual Meeting of the Western Economic Association, June 20, 1977, in Anaheim, California
Grier, Paul, (1977)
Die Mehrproduktfirma : eine produktions- und transaktionskostentheoretische Untersuchung unter besonderer Berücksichtigung der Marktkonfiguration
Krauth, Christian, (1996)
Efficiency measurement by data envelopment analysis with econometric applications
Sengupta, Jati K., (1988)
Evaluation of investment portfolios : some tests of robustness and diversification
Sengupta, Jati K., (1987)
Tests of efficiency of limited diversification portfolios
Sengupta, Jati K., (1985)