@article {1447,
	title = {A trilevel r-interdiction selective multi-depot vehicle routing problem with depot protection},
	journal = {Computers \& operations research},
	volume = {123},
	year = {2020},
	pages = {104996},
	author = {Sadati, Mir Ehsan Hesam and Aksen, Deniz and Necati Aras}
}
