Low-redshift constraints on the Hubble constant from the baryon acoustic oscillation “standard rulers” and the gravitational wave “standard sirens”Zhe Chang, Qing-Guo Huang, Sai Wang and Zhi-Chao ZhaoEur. Phys. J. C, 79 2 (2019) 177DOI: https://doi.org/10.1140/epjc/s10052-019-6664-0