For citations:

Aldongarov A.A., Assilbekova A.M., Irgibaeva I.S., Mantel A.I. Comparison of calculated by DFTB electronic excitation energies of CdS nanosized clusters with DFT results. Eurasian Journal of Physics and Functional Materials. 2020;4(3):255-260. https://doi.org/10.29317/ejpfm.2020040308