@article {38097,
	title = {1.375-approximation algorithm for sorting by reversals},
	journal = {Algorithms{\textemdash}ESA 2002Algorithms{\textemdash}ESA 2002},
	year = {2002},
	publisher = {Springer},
	author = {Berman, P. and Sridhar Hannenhalli and Karpinski, M.}
}
