@article{清水_2007, 
  title={数学史との50年(アゴラ)}, 
  volume={46}, 
  DOI={10.34336/jhsj.46.244_266}, 
  number={244}, 
  publisher={History of Science Society of Japan}, 
  author={清水, 達雄}, 
  year={2007}
  }