@article{Singh:20212Q,
  author = "Singh, Rajeev",
  title = "{Mathematical expressions for quantum fluctuations of energy for different energy-momentum tensors}",
  doi = "10.22323/1.397.0161",
  journal = "PoS",
  year = 2021,
  volume = "LHCP2021",
  pages = "161"
}