For citations:

Kozlov V.K., Sabitov A.K., Nizamutdinov B.R. Investigation of ageing process in paper-oil insulation with visible range. Power engineering: research, equipment, technology. 2015;(3-4):81-85. (In Russ.) https://doi.org/10.30724/1998-9903-2015-0-3-4-81-85