@inproceedings{BercherIJCAI17,
   title = {An Admissible HTN Planning Heuristic},
   author = {Pascal Bercher and Gregor Behnke and Daniel H{\"{o}}ller and Susanne Biundo},
   booktitle = {Proceedings of the 27th International Joint Conference on Artificial Intelligence ({IJCAI})},
   publisher = {IJCAI organization},
   pages = {480--488},
   year = {2017}
}