A Note on Combinatorial Proofs for Extended Touchard's and Extended Koshy's Identities

Roberta R. Zhou, Kun Yan, Yihui He, Xinxin Xu. A Note on Combinatorial Proofs for Extended Touchard's and Extended Koshy's Identities. Graphs and Combinatorics, 36(6):1705-1711, 2020. [doi]

@article{ZhouYHX20-1,
  title = {A Note on Combinatorial Proofs for Extended Touchard's and Extended Koshy's Identities},
  author = {Roberta R. Zhou and Kun Yan and Yihui He and Xinxin Xu},
  year = {2020},
  doi = {10.1007/s00373-020-02195-4},
  url = {https://doi.org/10.1007/s00373-020-02195-4},
  researchr = {https://researchr.org/publication/ZhouYHX20-1},
  cites = {0},
  citedby = {0},
  journal = {Graphs and Combinatorics},
  volume = {36},
  number = {6},
  pages = {1705-1711},
}