@inproceedings{oai:fun.repo.nii.ac.jp:00003514,
 author = {Hamaguchi, Yasuyo and Kawagoe, Toshiji and Shibata, Aiko},
 book = {日本経済学会春季大会},
 month = {Jun},
 title = {An Experimental Study of Leniency Programs},
 year = {2005}
}