Baruccietal1999 Barucci, M.A., A. Doressoundiram, D. Tholen, M. Fulchignoni, and M. Lazzarin 1999. Spectrophotometric observations of Edgeworth-Kuiper belt objects. Icarus 142, 476-481. Daviesetal1996b Davies, J.K., Tholen, D.J., and Ballantyne, D.R. 1996. Infrared observations of distant asteroids. In 'Completing the Inventory of the Solar System', ASP Conf. Proc. 107, 97. Daviesetal1997 Davies, J.K., McBride, N., and Green, S.F. 1997. Optical and infrared photometry of Kuiper belt object 1993 SC. Icarus, 125, 61. Greenetal1997 Green, S.F., McBride, N., O'Ceallaigh, D.P., Fitzsimmons, A., Williams, I.P., and Irwin, M.J. 1997. Surface reflectance properties of distant solar system bodies. MNRAS 290, 186. Jewitt&Luu1998 Jewitt, D.C. and Luu, J.X. 1998. Optical-infrared spectral diversity in the Kuiper belt. AJ, 115, 1667. Luu&Jewitt1996 Luu, J.X. and Jewitt, D.C. 1996. Color diversity among the Centaurs and Kuiper belt objects. AJ, 112, 2310. Tegler&Romanishin1997 Tegler, S.C. and Romanishin, W. 1997. The extraordinary colors of trans-Neptunian objects 1994 TB and 1993 SC. Icarus, 126, 212. Tegler&Romanishin1998 Tegler, S.C. and Romanishin, W. 1998. Two distinct populations of Kuiper-belt objects. Nature, 392, 49.