@article{kobayashi_tsuji_2010, 
  title={Japan-North America Joint Conference on Mathematical Sociology}, 
  volume={25}, 
  DOI={10.11218/ojjams.25.15}, 
  number={1}, 
  publisher={Japanese Association For Mathematical Sociology}, 
  author={KOBAYASHI, Jun and TSUJI, Ryuhei}, 
  year={2010}
  }