@inproceedings{CTT100472888,
  author = {HIROYUKI UMEMURO},
  title = {Japanese Elderly and Computers in the Workplace},
  booktitle = {Gerontechnology},
  year = 2002,
}

@inproceedings{CTT100476538,
  author = {Hiroyuki Umemuro and Motoki Takayama},
  title = {Computer Keyboard with Dynamic Key Layout Change},
  booktitle = {Gerontechnology},
  year = 2002,
}

@misc{CTT100472896,
  author = {Hiroyuki Umemuro and Jun Yamashita},
  title = {Detecting User's Confusion based on Pupil Dialation},
  year = 2002,
}

@misc{CTT100472899,
  author = {Kenji Hirano and Hiroyuki Umemuro},
  title = {XML Support for Business System Transformation Model},
  year = 2002,
}