@inproceedings{experimentswithuniversalcefr,
  title = {Experiments with Universal CEFR Classification},
  author = {Sowmya Vajjala and Taraka Rama},
  year = {2018},
  booktitle = {WS 2018 6},
  eprint = {1804.06636},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1804.06636v1},
}