Holographic Ricci dark energy in nonconservative unimodular gravity Marcelo H. Alvarenga, Luiz Filipe Guimarães, Júlio C. Fabris and Hermano Velten Eur. Phys. J. C, 84 5 (2024) 448 Published online: 02 May 2024 DOI: 10.1140/epjc/s10052-024-12829-z