中国科学院数学与系统科学研究院期刊网
AMS
Sharp Error Estimate for Maximum Likelihood Estimator of Nonstationary Diffusion Processes
Zhi Yan XU, Wei An ZHENG
Acta Mathematica Sinica . 2005, (2): 303 -314 .  DOI: 10.1007/s10114-004-0371-x