@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042153,
 author = {Lean, Hooi Hooi and McAleer, Michael and Wong, Wing-Keung},
 month = {Jan},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Market Efficiency of Oil Spot and Futures : A Stochastic Dominance Approach},
 year = {2010}
}