@inproceedings{makingreadabilityindicesreadable,
  title = {Making Readability Indices Readable},
  author = {Sara Tonelli and Ke Tran Manh and Emanuele Pianta},
  year = {2012},
  booktitle = {WS 2012 6},
  url = {https://aclanthology.org/W12-2206},
}