Matthew G. Coleman (1), Katrin Jordi (2), Hans-Walter Rix (1), Eva K. Grebel (2), Andreas Koch (3) ((1) Max-Planck-Institut fur Astronomie, Heidelberg, Germany, (2) Astronomisches Rechen-Institut, Zentrum fur Astronomie der Universitat Heidelberg, Heidelberg, Germany, (3) Department of Physics and Astronomy, UCLA, Los Angeles, CA, USA)
