Diego Perez, Edward J. Powley, Daniel Whitehouse, Philipp Rohlfshagen, Spyridon Samothrakis, Peter I. Cowling, Simon M. Lucas. Solving the Physical Traveling Salesman Problem: Tree Search and Macro Actions. IEEE Trans. Comput. Intellig. and AI in Games, 6(1):31-45, 2014. [doi]
Abstract is missing.