Repetition-free longest common subsequence.
Said Sadique AdiMarília D. V. BragaCristina G. FernandesCarlos Eduardo FerreiraFábio Viduani MartinezMarie-France SagotMarco Aurelio StefanesChristian TjandraatmadjaYoshiko WakabayashiPublished in: Electron. Notes Discret. Math. (2008)