A half-a-day long thermonuclear X-ray burst from KS 1731-260 E. Kuulkers, J. J. M. in 't Zand, M. H. van Kerkwijk, R. Cornelisse, D. A. Smith, J. Heise, A. Bazzano, M. Cocchi, L. Natalucci and P. Ubertini A&A, 382 2 (2002) 503-512 Published online: 15 February 2002 DOI: 10.1051/0004-6361:20011654