Kalugin A.I., Perevoshchikov D.A., Antonov E.A., Sobolev V.Val. «Permittivity spectra and structure of d-bands of germanium telluride, tin telluride and lead telluride» // Izvestiya vuzov. Fizika 2020. №9 C.44-49
Sobolev Val.V., Sobolev V.V. «Parameters of complex structure of optical functions of stannide diamagnium» // Izvestiya vuzov. Fizika 2019. №5 C.69-76