Constrains on the electric charges of the binary black holes with GWTC-1 eventsHai-Tang Wang, Peng-Cheng Li, Jin-Liang Jiang, Guan-Wen Yuan, Yi-Ming Hu and Yi-Zhong FanEur. Phys. J. C, 81 8 (2021) 769DOI: https://doi.org/10.1140/epjc/s10052-021-09555-1