[1] R. Dechter, J. Pearl, Generalized best-first search strategies and optimality of A ∗, Journal ACM, 32, 3, (1985) 505-536. ⇒192, 199, 20410.1145/3828.3830
[2] I. Fekete, T. Gregorics, L. Zs. Varga, Corrections to graph-search algorithms. Proc. of the Fourth Conference of Program Designers, ELTE, Budapest, June 1-3, 1988. ⇒191
[4] A. Martelli, On the complexity of admissible search algorithms. Artificial Intelligence, 8, 1 (1977) 1-13. ⇒198, 201, 20410.1016/0004-3702(77)90002-9