@article{oai:ygu.repo.nii.ac.jp:00000323,
 author = {宮塚,  利雄 and ミヤツカ,  トシオ and Miyatsuka,  Toshio},
 journal = {山梨学院大学経営情報学論集},
 month = {Feb},
 note = {P(論文)},
 pages = {53--76},
 title = {北朝鮮の地下資源の現状},
 volume = {18},
 year = {2012}
}