Correlations among elliptic flow parameter, impact parameter, and multiplicityDai-Mei Zhou, Yun Cheng, Yu-Liang Yan, Bao-Guo Dong, Ben-Hao Sa and Laszlo P. CsernaiEur. Phys. J. A, 45 3 (2010) 353-356DOI: https://doi.org/10.1140/epja/i2010-11013-2