@article{CTT100723463,
  author = {Asahi Takaoka and Shingo Okuma and Satoshi Tayu and Shuichi UENO},
  title = {A Note on Harmonious Coloring of Caterpillars},
  journal = {IEICE Trans. Information and Systems},
  year = 2015,
}

@inproceedings{CTT100680794,
  author = {Asahi Takaoka and Shingo Okuma and Satoshi Tayu and Shuichi UENO},
  title = {Harmonious Coloring of Caterpillars},
  booktitle = {Technical Report of the IEICE},
  year = 2014,
}

@inproceedings{CTT100680788,
  author = {Asahi Takaoka and Satoshi Tayu and Shingo Okuma and Shuichi Ueno},
  title = {Harmonious Coloring of Caterpillars},
  booktitle = {Proceedings of the 2014 IEICE Society Conference},
  year = 2014,
}