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- [21] TREES AND NEGATIVE ESTIMATES OF VARIANCE-COMPONENTS ANNALS OF MATHEMATICAL STATISTICS, 1960, 31 (04): : 1217 - 1217
- [22] ON THE PROBLEM OF NEGATIVE ESTIMATES OF VARIANCE-COMPONENTS ANNALS OF MATHEMATICAL STATISTICS, 1960, 31 (01): : 244 - 244
- [23] ON AN OPTIMAL PROPERTY OF VARIANCE-COMPONENTS ESTIMATES ANNALS OF MATHEMATICAL STATISTICS, 1957, 28 (04): : 1058 - 1059