Correlations between multiplicities and average transverse momentum in the percolating color strings approach M. A. Braun, R. S. Kolevatov, C. Pajares and V. V. VecherninEur. Phys. J. C, 32 4 (2004) 535-546DOI: https://doi.org/10.1140/epjc/s2003-01443-6