Tools
  1. Artificial Intelligence: A Modern Approach [Third Edition] Introduction to Algorithms, Third Edition (3rd. ed.)
  2. Elaine Rich, Kevin Knight, & Shivashankar B Nair, Artificial Intelligence, McGraw Hill, 3rd ed.,2009
  3. P. Hart, N. Nilsson and B. Raphael, "A formal basis for the heuristic determination of minimum cost paths", IEEE Trans. Syst. Sci. Cybern., vol. SSC-4, no. 2, pp. 100-107, Jul. 1968.