John Stansberry, Will Grundy, Mike Brown, Dale Cruikshank, John Spencer, David Trilling, Jean-Luc Margot. Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope. „arXiv”, 2007-11-05. University of Arizona, Lowell Observatory, California Institute of Technology, NASA Ames Research Center, Southwest Research Institute, Cornell University. arXiv:astro-ph/0702538v2. (ang.).