@article{201702.0071,
	doi = {10.20944/preprints201702.0071.v1},
	url = {https://doi.org/10.20944/preprints201702.0071.v1},
	year = 2017,
	month = {February},
	publisher = {Preprints},
	author = {Karsten Keller and Teresa Mangold and Inga Stolz and Jenna Werner},
	title = {Permutation Entropy: New Ideas and Challenges},
	journal = {Preprints}
}