@Article{chiang-cl18,
  author = {David Chiang and Frank Drewes and Daniel Gildea and Adam Lopez and
  Giorgio Satta},
  title = {Weighted {DAG} Automata for Semantic Graphs},
  journal = {Computational Linguistics},
  year = {2018},
  volume = {44},
  number = {1},
  pages = {119--186},
  URL = {https://www.cs.rochester.edu/u/gildea/pubs/chiang-cl18.pdf}
}