@misc{misce7f8a7c8,
title   = {Comparison between centrality classification using impact parameter and the number of participants for spectra},
author = {Grassi, Frederique Marie Brigitte Sylvie and Aguia, C E and Andrade, R and Hama, Yogiro and Kodama, T and Osada, T and Sokolowski Junior, O},
year = {2005},
publisher = {IFUSP}
}