@article{Volvach2020double, author={Volvach, A.. and Larionov, M.G. and Volvach, L.. and Aller, H.D. and Aller, M.F.}, title={Double supermassive black holes as possible sources of powerful gravitational wave radiation}, journal={Infocommunications and Radio Technologies}, publisher={Federal State Educational Institution of Higher Education Sevastopol State University}, year={2020}, pages={5-23}, volume={3}, issue={1}, }