中国科学院数学与系统科学研究院期刊网
AMS
NS Condition of Admissibility for the Linear Estimator of Normal Mean with Unknown Variance
Xing Zhong XU, Qi Guang WU
Acta Mathematica Sinica . 2005, (5): 1083 -1086 .  DOI: 10.1007/s10114-004-0458-4