@article {10435,
	title = {The design of single allocation incomplete hub networks},
	journal = {Transportation Research Part B: Methodological},
	volume = {43},
	year = {2009},
	pages = {936-951},
	url = {https://doi.org/10.1016/j.trb.2009.04.004},
	author = {Alumur, S.A. and Kara, B.Y. and Karasan, O.E}
}