The internal kinematics of dwarf spheroidal galaxiesM.I. Wilkinson, J.T. Kleyna, N. Wyn Evans, G.F. Gilmore, J.I. Read, A. Koch, E.K. Grebel and M.J. IrwinEAS Publications Series, 20 (2006) 105-112DOI: https://doi.org/10.1051/eas:2006055