Boris Aronov, Esther Ezra, Micha Sharir. Small-size epsilon-nets for axis-parallel rectangles and boxes. In Michael Mitzenmacher, editor, Proceedings of the 41st Annual ACM Symposium on Theory of Computing, STOC 2009, Bethesda, MD, USA, May 31 - June 2, 2009. pages 639-648, ACM, 2009. [doi]
Abstract is missing.