Linda Pagli, Giuseppe Prencipe, Giovanni Viglietta. Getting Close without Touching. In Guy Even, Magnús M. Halldórsson, editors, Structural Information and Communication Complexity - 19th International Colloquium, SIROCCO 2012, Reykjavik, Iceland, June 30-July 2, 2012, Revised Selected Papers. Volume 7355 of Lecture Notes in Computer Science, pages 315-326, Springer, 2012. [doi]
Abstract is missing.