@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042187,
 author = {Sato, Seisho and Kunitomo, Naoto},
 month = {Jun},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {A Robust Estimation of Realized Volatility and Covariance with Micro-market Adjustments and Round-off Errors},
 year = {2011}
}