ICAPS 2014 talk on the paper
Florian Pommerening, Gabriele Röger, Malte Helmert, Blai Bonet.
LP-Based Heuristics for Cost-Optimal Planning.
Proceedings of the Twenty-Fourth International Conference on Automated
Planning and Scheduling. pp. 226-234. 2014. AAAI Press
(online available at
http://www.aaai.org/ocs/index.php/ICAPS/ICAPS14/paper/view/7892)