@techreport{oai:repository.dl.itc.u-tokyo.ac.jp:00042121,
 author = {Kuo, Hsiao-I and Chen, Chi-Chung and McAleer, Michael},
 month = {Aug},
 note = {application/pdf, 本文フィルはリンク先を参照のこと},
 title = {Estimating the Impact of Whaling on Global Whale Watching},
 year = {2009}
}