Exact rotating black hole solutions for f(R) gravity by modified Newman Janis algorithmPankaj Chaturvedi, Utkarsh Kumar, Udaykrishna Thattarampilly and Vishnu KakkatEur. Phys. J. C, 83 12 (2023) 1124DOI: https://doi.org/10.1140/epjc/s10052-023-12306-z