Anisotropy of the gravitational-wave standard sirens and its cosmological applications Lin Chen, Lixin Xu, Jinyi Liu, Ling Qiao and Minghui Du Eur. Phys. J. C, 82 4 (2022) 380 Published online: 29 April 2022 DOI: 10.1140/epjc/s10052-022-10330-z