@article{Tsukada17,
  title = {Foreword},
  author = {Keiji Tsukada},
  year = {2017},
  url = {http://search.ieice.org/bin/summary.php?id=e100-c_3_268},
  researchr = {https://researchr.org/publication/Tsukada17},
  cites = {0},
  citedby = {0},
  journal = {IEICE Transactions},
  volume = {100-C},
  number = {3},
  pages = {268},
}