Evolution of non-flat cosmos via GGPDE f(R) model Wajiha Javed, Iqra Nawazish, Fatima Shahid and Nimra Irshad Eur. Phys. J. C, 80 2 (2020) 90 Published online: 05 February 2020 DOI: 10.1140/epjc/s10052-020-7640-4