@inproceedings{HoellerAAAI21,
   title = {Landmark Generation in {HTN} Planning},
   author = {Daniel H{\"{o}}ller and Pascal Bercher},
   booktitle = {Proceedings of the 35th {AAAI} Conference on Artificial Intelligence ({AAAI})},
   publisher = {{AAAI} Press},
   pages = {11826--11834},
   year = {2021}
}