Approximating the Maximum Isomorphic Agreement Subtree Is Hard

@inproceedings{Bonizzoni2000ApproximatingTM,
  title={Approximating the Maximum Isomorphic Agreement Subtree Is Hard},
  author={Paola Bonizzoni and Gianluca Della Vedova and Giancarlo Mauri},
  booktitle={CPM},
  year={2000}
}