@inproceedings{evolutionaryhierarchicaldirichletprocess,
  title = {Evolutionary Hierarchical Dirichlet Process for Timeline Summarization},
  author = {Jiwei Li and Sujian Li},
  year = {2013},
  booktitle = {ACL 2013 8},
  url = {https://aclanthology.org/P13-2099},
}