The dynamical mass of the young cluster W3 in NGC 7252 - Heavy-weight globular cluster or ultra compact dwarf galaxy?C. Maraston, N. Bastian, R. P. Saglia, M. Kissler-Patig, F. Schweizer and P. GoudfrooijA&A, 416 2 (2004) 467-473DOI: https://doi.org/10.1051/0004-6361:20031604