@article{CsikvariL14,
  title = {Graph Homomorphisms between Trees},
  author = {Péter Csikvári and Zhicong Lin},
  year = {2014},
  url = {http://www.combinatorics.org/ojs/index.php/eljc/article/view/v21i4p9},
  researchr = {https://researchr.org/publication/CsikvariL14},
  cites = {0},
  citedby = {0},
  journal = {Electr. J. Comb.},
  volume = {21},
  number = {4},
  pages = {4},
}