Investigating generalized polytropic compact objects in f(R) gravity A. Zahra, S. A. Mardan, Muhammad Bilal Riaz and Tomas Kozubek Eur. Phys. J. C, 85 3 (2025) 291 Published online: 13 March 2025 DOI: 10.1140/epjc/s10052-025-13950-3