@article{oai:shizuoka.repo.nii.ac.jp:00005403,
 author = {竹内, 正辰},
 journal = {地学しずはた},
 month = {Mar},
 note = {application/pdf},
 pages = {4--9},
 title = {炭坑に課せられた新しい問題},
 volume = {1},
 year = {1953}
}