@inproceedings{Fukaya:2022XY,
  author = "Fukaya, Hidenori",
  title = "{A physicist-friendly reformulation of the Atiyah-Patodi-Singer index (on a lattice)}",
  doi = "10.22323/1.396.0012",
  booktitle = "Proceedings of The 38th International Symposium on Lattice Field Theory {\textemdash} PoS(LATTICE2021)",
  year = 2022,
  volume = "396",
  pages = "012"
}