@article {2005.10818, archivePrefix = {arXiv}, eprint = {2005.10818}, primaryClass = {astro-ph.HE}, author = {Yunfeng Chen and Qingjuan Yu and Youjun Lu}, title = {Dynamical evolution of cosmic supermassive binary black holes and their gravitational wave radiation}, year = {2020}, url = {http://arxiv.org/abs/2005.10818} }