Sven Koenig, Apurva Mudgal, Craig A. Tovey. A near-tight approximation lower bound and algorithm for the kidnapped robot problem. In Proceedings of the Seventeenth Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2006, Miami, Florida, USA, January 22-26, 2006. pages 133-142, ACM Press, 2006. [doi]
Abstract is missing.