Symmetry energy extracted from fragments in relativistic energy heavy-ion collisions induced by 124,136XeChun-Wang Ma, Jie Pu, Hui-Ling Wei, Shan-Shan Wang, Heng-Li Song, Sha Zhang and Li ChenEur. Phys. J. A, 48 6 (2012) 78DOI: https://doi.org/10.1140/epja/i2012-12078-5