73P/Schwassmann-Wachmann 3-B observed from the optical ground station T.-M. Ho, R. Schulz, C. Erd, D. Martin, T. Oosterbroek, A. Peacock, A. Stankov, J. Stuewe and P. Verhoeve A&A, 477 1 (2008) 299-308 Published online: 23 October 2007 DOI: 10.1051/0004-6361:20077261