@inproceedings{modellingandoptimizingonsyntacticngrams,
  title = {Modelling and Optimizing on Syntactic N-Grams for Statistical Machine Translation},
  author = {Rico Sennrich},
  year = {2015},
  booktitle = {TACL 2015 1},
  url = {https://aclanthology.org/Q15-1013},
}