A five-element transformation monoid on labelled trees

Yaokun Wu, Zeying Xu, Yinfeng Zhu. A five-element transformation monoid on labelled trees. Eur. J. Comb., 80:401-415, 2019. [doi]

@article{WuXZ19-0,
  title = {A five-element transformation monoid on labelled trees},
  author = {Yaokun Wu and Zeying Xu and Yinfeng Zhu},
  year = {2019},
  doi = {10.1016/j.ejc.2018.07.014},
  url = {https://doi.org/10.1016/j.ejc.2018.07.014},
  researchr = {https://researchr.org/publication/WuXZ19-0},
  cites = {0},
  citedby = {0},
  journal = {Eur. J. Comb.},
  volume = {80},
  pages = {401-415},
}