@inproceedings{statisticalmachinetranslationwith,
  title = {Statistical Machine Translation with Readability Constraints},
  author = {Sara Stymne and J{\"o}rg Tiedemann and Christian Hardmeier and Joakim Nivre},
  year = {2013},
  booktitle = {WS 2013 5},
  url = {https://aclanthology.org/W13-5634},
}