@misc{indiciaeb980ca57031b,
  title = {High harmonic generation beyond the electric dipole approximation},
  author = {MW Walser and CH Keitel and A Scrinzi and T Brabec},
  year = {2000},
  doi = {10.1103/physrevlett.85.5082},
  url = {https://pubmed.ncbi.nlm.nih.gov/11102191/},
  note = {Source identifier: 11102191}
}