共 50 条
- [31] BIAS AND ITS EFFECTS IN ORE-RESERVE ESTIMATORS [J]. TRANSACTIONS OF THE INSTITUTION OF MINING AND METALLURGY SECTION A-MINING INDUSTRY, 1978, 87 (JAN): : A8 - A12
- [37] Use of semi-variance in risk management and the properties of its estimators [J]. Tongji Daxue Xuebao/Journal of Tongji University, 1998, 26 (01): : 67 - 71