@inproceedings{HoellerHPlan19,
   title = {HDDL -- A Language to Describe Hierarchical Planning Problems},
   author = {Daniel H{\"{o}}ller and Gregor Behnke and Pascal Bercher and Susanne Biundo and Humbert Fiorino and Damien Pellier and Ron Alford},
   booktitle = {Proceedings of the 2nd ICAPS Workshop on Hierarchical Planning (HPlan)},
   year = {2019}
}