@article{Kamata:2016Bx,
  author = "Kamata, Norihiko  and  Sasaki, Shoichi",
  title = "{Lattice gradient flow with tree-level $O(a^4)$ improvement in pure Yang-Mills theory}",
  doi = "10.22323/1.251.0301",
  journal = "PoS",
  year = 2016,
  volume = "LATTICE 2015",
  pages = "301"
}