@inproceedings{firststepstowardsapredicatematrix,
  title = {First steps towards a Predicate Matrix},
  author = {Maddalen L{\'o}pez de Lacalle and Egoitz Laparra and German Rigau},
  year = {2014},
  booktitle = {WS 2014 1},
  url = {https://aclanthology.org/W14-0150},
}