@article{Takeda:2022tX,
  author = "Takeda, Shinji",
  title = "{A novel method to evaluate real-time path integral for scalar $\phi^4$ theory}",
  doi = "10.22323/1.396.0532",
  journal = "PoS",
  year = 2022,
  volume = "LATTICE2021",
  pages = "532"
}