@article{oai:kwansei.repo.nii.ac.jp:00018504,
 author = {土井, 教之 and Doi, Noriyuki},
 issue = {4},
 journal = {経済学論究},
 month = {Jan},
 pages = {61--80},
 title = {競争と利潤率 : 1966-1972},
 volume = {30},
 year = {1977}
}