@article{井上_1918, 
  title={歐洲戰場に於ける鑛産地領有の戰局に及ほせる影響}, 
  volume={4}, 
  DOI={10.2355/tetsutohagane1915.4.9_919}, 
  number={9}, 
  publisher={The Iron and Steel Institute of Japan}, 
  author={井上, 禧之助}, 
  year={1918}
  }