Impact of generalized polytropic equation of state on charged anisotropic polytropes S. A. Mardan, M. Rehman, I. Noureen and R. N. Jamil Eur. Phys. J. C, 80 2 (2020) 119 Published online: 13 February 2020 DOI: 10.1140/epjc/s10052-020-7647-x