Dennis de Champeaux, Lenie Sint. An Optimality Theorem for a Bi-Directional Heuristic Search Algorithm. Comput. J., 20(2):148-150, 1977.
@article{ChampeauxS77:0, title = {An Optimality Theorem for a Bi-Directional Heuristic Search Algorithm}, author = {Dennis de Champeaux and Lenie Sint}, year = {1977}, tags = {search}, researchr = {https://researchr.org/publication/ChampeauxS77%3A0}, cites = {0}, citedby = {0}, journal = {Comput. J.}, volume = {20}, number = {2}, pages = {148-150}, }