Korotin S. An application of the NLTE method for investigation of the light element abundances in the stellar atmospheres

3. The dissertation contains the results of 8 scientific publica- publications, in which the determination of the CNO and Na abundances were investigated for the stars of the different ages and spectral types without the supposition about LTE. An influence of the NLTE effects on the lines of atoms and ions of those elements was studied for the spectra of the main sequ- ence B stars, Cepheid, cool dwarfs and giants. It was shown that an account of the NLTE deviations is of the paramount importance for our present knowledges about the chemical composition of the stellar atmospheres.