AGREEMENT OF MATHS AND OBSERVATION. “Using the observed values of masses of considered stars in modified TOV equation, we have evaluated the values of radii, compactness parameter and gravitational redshift for B = 64 MeV/fm3 which are very close to the values obtained in literature corresponding to the different choices of bag constant.”
https://www.sciencedirect.com/science/article/pii/S0577907319309773