Sébastien Angibaud Guillaume Fertin Irena Rusu On the Approximability of Comparing Genomes with Duplicates. 34-45 2008 conf/walcom/2008 WALCOM http://dx.doi.org/10.1007/978-3-540-77891-2_4 db/conf/walcom/walcom2008.html#AngibaudFR08