Signature of f(R) gravity via Lemaître–Tolman–Bondi inhomogeneous perturbations Tiziano Schiavone and Giovanni Montani Eur. Phys. J. C, 84 5 (2024) 490 Published online: 14 May 2024 DOI: 10.1140/epjc/s10052-024-12842-2