Solar Wind Particle Distribution Function Fitted via the Generalized Kappa Distribution Function: Cluster Observations - Qureshi, MNS; Pallocchia, G; Bruno, R; Cattaneo, MB; Formisano, V; Reme, H; Bosqued, JM; Dandouras, I; Sauvaud, JA; Kistler, LM; Möbius, E; Klecker, B; et al. (2003)