Discovery of the neutron star nature of SLX 1737-282 J. J. M. in 't Zand, F. Verbunt, E. Kuulkers, C. B. Markwardt, A. Bazzano, M. Cocchi, R. Cornelisse, J. Heise, L. Natalucci and P. Ubertini A&A, 389 2 (2002) L43-L46 Published online: 27 June 2002 DOI: 10.1051/0004-6361:20020631