Cosmic voids and induced hyperbolicity. III. Tracing redshift dependence M. Samsonyan, A. A. Kocharyan, A. Stepanian and V. G. Gurzadyan Eur. Phys. J. Plus, 136 8 (2021) 821 Published online: 09 August 2021 DOI: 10.1140/epjp/s13360-021-01817-x