Extracting the jet azimuthal anisotropy from higher order cumulants I.P. Lokhtin, L.I. Sarycheva and A.M. Snigirev Eur. Phys. J. C, 30 1 (2003) 103-109 Published online: 25 July 2003 DOI: 10.1140/epjc/s2003-01226-1