Kozyreva, Oksana, et al. “EXPERIMENTAL INVESTIGATIONS OF EFFECT OF LC-CIRCUITS ON SPARKING AND THERMAL STATE OF SLIDING ELECTRIC CONTACT UNIT”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, vol. 3, June 2017, pp. 150-3, https://doi.org/10.17770/etr2017vol3.2575.