TY  - RPRT
TI  - Multiphoton ionization in superintense, high-frequency laser fields. I. General developments.
AU  - M Pont
PY  - 1991
DO  - 10.1103/physreva.44.2141
UR  - https://pubmed.ncbi.nlm.nih.gov/9906184/
ID  - 9906184
ER  -