Characterization of STARDUST target comet 81P/Wild 2 from 1996 to 1998 R. Schulz, J. A. Stüwe, H. Boehnhardt, W. Gaessler and G. P. Tozzi A&A, 398 1 (2003) 345-352 Published online: 14 January 2003 DOI: 10.1051/0004-6361:20021673