Non-minimal coupling inspires the Dirac cosmological model H. Moradpour, H. Shabani, A. H. Ziaie and Umesh Kumar Sharma Eur. Phys. J. Plus, 136 7 (2021) 731 Published online: 08 July 2021 DOI: 10.1140/epjp/s13360-021-01713-4