On the broadening of spectral lines by the interaction of photons with a new field.

Collisional broadening of spectral line shapes in two-photon and multiphoton processes

Natural broadening of atomic spectral lines and generalized operator of electromagnetic interaction.

Effects of nonlocality in time of interactions of an atom with its surroundings on the broadening of spectral lines of atoms

Effects of strong fields on the shapes of inhomogeneously broadened spectral lines

Stark broadening of atomic spectral lines in a field of multimode laser radiation

Stark broadening of spectral lines of atoms in the field of multimode laser radiation