@article{nishizaki_katagiri_notsu_2004, 
  title={Equilibrium Solutions of Two-Person Non-Zero-Sum Games in Extensive Form and the Corresponding Quadratic Programming Problems}, 
  volume={17}, 
  DOI={10.5687/iscie.17.263}, 
  publisher={The Institute of Systems, Control and Information Engineers}, 
  author={NISHIZAKI and KATAGIRI and NOTSU}, 
  year={2004}
  }