Steffen Grünewälder, Klaus Obermayer. The optimal unbiased value estimator and its relation to LSTD, TD and MC. Machine Learning, 83(3):289-330, 2011. [doi]
@article{GrunewalderO11,
title = {The optimal unbiased value estimator and its relation to LSTD, TD and MC},
author = {Steffen Grünewälder and Klaus Obermayer},
year = {2011},
doi = {10.1007/s10994-010-5220-9},
url = {http://dx.doi.org/10.1007/s10994-010-5220-9},
researchr = {https://researchr.org/publication/GrunewalderO11},
cites = {0},
citedby = {0},
journal = {Machine Learning},
volume = {83},
number = {3},
pages = {289-330},
}