A comparative study on generalized model of anisotropic compact star satisfying the Karmarkar conditionPiyali Bhar, Ksh. Newton Singh, Nayan Sarkar and Farook RahamanEur. Phys. J. C, 77 9 (2017) 596DOI: https://doi.org/10.1140/epjc/s10052-017-5149-2