@article {4756711,
	title = {{A comparative analysis of several asymmetric traveling salesman problem formulations}},
	journal = {Computers \& Operations Research},
	volume = {36},
	year = {2009},
	pages = {637{\textendash}654},
	doi = {10.1016/j.cor.2007.11.008},
	author = {Temel {\"O}ncan and I. Kuban Altinel and Gilbert Laporte}
}
