@article {16341, title = {Code Clones: Good, Bad, or Ugly?}, journal = {Nordic Journal of Computing}, volume = {15}, year = {2012}, pages = {3{\textendash}17}, issn = {1236-6064}, author = {M. Harsu and Tibor Bakota and Istv{\'a}n Siket and K. Koskimies and T. Systa} }