@misc{indiciaea8a00f5f465c,
  title = {Volkov limit for atomic ionization by ultraintense laser fields.},
  author = {S Geltman},
  year = {1992},
  doi = {10.1103/physreva.45.5293},
  url = {https://pubmed.ncbi.nlm.nih.gov/9907624/},
  note = {Source identifier: 9907624}
}