@misc{indiciaeeb4ed657ea35,
  title = {Reduced scaling formulation of CASPT2 analytical gradients using the supporting subspace method},
  author = {Song, Chenchen and Neaton, Jeffrey B. and Martínez, Todd J.},
  year = {2021},
  doi = {10.1063/5.0035233},
  url = {https://www.osti.gov/biblio/1767927},
  note = {Source identifier: 1767927}
}