@inproceedings{HoellerIJCAI20,
   title = {Delete- and Ordering-Relaxation Heuristics for {HTN} Planning},
   author = {Daniel H{\"{o}}ller and Pascal Bercher and Gregor Behnke},
   booktitle = {Proceedings of the 29th International Joint Conference on Artificial Intelligence ({IJCAI})},
   publisher = {IJCAI organization},
   pages = {4076--4083},
   year = {2020}
}