ArticleDynamics of many-photon processes in two-level systemsN. N. Bogolyubov·Fam Le Kien·A. S. Shumovskiǐ·1985·enABIABI:AkademIndex/openalex/2026.other.544331CiteAbstractNo abstract available.IdentifiersDOI10.1007/bf01018272Citations and referencesCited by 20 referencesMetrics — AkademScholar