Role of Raman frequencies in energy degradation of electron excitation of rare-earth ions

Cross-relaxational multiplication of electronic excitations of rare-earth ions

Nonresonance Excitation Energy Transfer Between Impurity Rare-earth Ions

Parameters and mechanism of elementary interaction of the electronic excitation of rare-earth ions with the local impurity oscillations

Investigation of the Mechanism of the Elementary Act of Excitation-energy Transfer Between Rare-earth Ions in Crystals

Excitation Energy Transfer between Trivalent Rare-earth Ions, Stimulated by a Radiation Field

ELECTRONIC EXCITATIONS OF RARE-EARTH IONS