For citations:
Andreev M.N., Drozdov A.A., Kozlov M.I., Zaitsev V.B., limonskii S.O. Changes in the microstructure and optical properties of doped sodium-calcium silicate glass upon secondary heat treatment. Industrial laboratory. Diagnostics of materials. 2019;85(11):19-25. (In Russ.) https://doi.org/10.26896/1028-6861-2019-85-11-19-25