@misc{indiciae67c52c76bfad,
  title = {Exact sum rules with approximate ground states},
  author = {Johnson, Calvin W. and Luu, Ken Anh and Lu, Yi},
  year = {2020},
  doi = {10.1088/1361-6471/abacda},
  url = {https://www.osti.gov/biblio/1783187},
  note = {Source identifier: 1783187}
}