@article{dependencylengthminimizationpuzzlesand,
  title = {Dependency length minimization: Puzzles and Promises},
  author = {Haitao Liu and Chunshan Xu and Junying Liang},
  year = {2015},
  eprint = {1509.04393},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1509.04393v1},
}