@inproceedings{Ekb-RTSS20,
	author = {Ekberg, Pontus},
	title = {Rate-Monotonic Schedulability of Implicit-Deadline Tasks is {NP}-hard Beyond {Liu} and {Layland's} Bound},
	booktitle={Proceedings of the 41st Real-Time Systems Symposium (RTSS)},
	year = {2020},
	pages = {308-318},
	doi = {10.1109/RTSS49844.2020.00036},
}