Wojciech Lorkiewicz, Radoslaw Katarzyniak. Representing the Meaning of Symbols in Autonomous Agents. In Ngoc Thanh Nguyen, Huynh Phan Nguyen, Adam Grzech, editors, First Asian Conference on Intelligent Information and Database Systems, ACIIDS 2009, Dong hoi, Quang binh, Vietnam, April 1-3, 2009. pages 183-189, IEEE Computer Society, 2009. [doi]