The internal kinematics of dwarf spheroidal galaxies M.I. Wilkinson, J.T. Kleyna, N. Wyn Evans, G.F. Gilmore, J.I. Read, A. Koch, E.K. Grebel and M.J. Irwin EAS Publications Series, 20 (2006) 105-112 Published online: 19 May 2006 DOI: 10.1051/eas:2006055