Collapsing dynamics of relativistic fluid in modified gravity admitting a conformal Killing vector Kazuharu Bamba, Z. Yousaf, M. Z. Bhatti, R. Nazer and Yuki Hashimoto Eur. Phys. J. C, 83 8 (2023) 739 Published online: 21 August 2023 DOI: 10.1140/epjc/s10052-023-11911-2