@InProceedings{simov-osenova:2015:Depling,
  author    = {Simov, Kiril  and  Osenova, Petya},
  title     = {Catena Operations for Unified Dependency Analysis},
  booktitle = {Proceedings of the Third International Conference on Dependency Linguistics (Depling 2015)},
  month     = {August},
  year      = {2015},
  address   = {Uppsala, Sweden},
  publisher = {Uppsala University, Uppsala, Sweden},
  pages     = {320--329},
  url       = {http://www.aclweb.org/anthology/W15-2135}
}