Approximate Noether symmetries of the geodetic Lagrangian of spherically symmetric spacetimes Farhad Ali, Muhammad Saad Ghafar, Muhammad Atif Khan and Zahir Shah Eur. Phys. J. Plus, 138 3 (2023) 253 Published online: 17 March 2023 DOI: 10.1140/epjp/s13360-023-03879-5