@article{oai:kwansei.repo.nii.ac.jp:00018992,
 author = {岡田, 敏裕 and Okada, Toshihiro},
 issue = {2},
 journal = {経済学論究},
 month = {Sep},
 pages = {113--131},
 title = {中期におけるR&D投資と技術変動},
 volume = {65},
 year = {2011}
}