@misc{indiciaeb90ace85da04,
  title = {Spectral flow in instanton computations and the β functions},
  author = {Monin, Alexander and Shifman, Mikhail and Vainshtein, Arkady},
  year = {2023},
  doi = {10.1103/physrevd.108.105002},
  url = {https://www.osti.gov/biblio/2205111},
  note = {Source identifier: 2205111}
}