@article{Di StefanoKrauseLuebbeckeZimmermann2019a,
	author = {G. Di Stefano and S. Krause and M. L\"{u}bbecke and U. Zimmermann},
	title = {On minimum k-modal partitions of permutations},
	journal = {Journal of Discrete Algorithms},
	year = {2008},
	number = {3},
	pages = {381--392},
	volume = {6},
	month = {Jul},
	doi = {10.1016/j.jda.2008.01.002}
}