@techreport{oai:shiga-u.repo.nii.ac.jp:00008994,
 author = {Naito, Takeshi},
 issue = {No. 88},
 month = {Apr},
 note = {Technical Report, 滋賀大学経済学部Working paper, No. 88, pp. 1-7},
 title = {Structure of antichain partitions of a submodular function and the essential coalition partition of a decomposable convex game},
 year = {2006}
}