@inproceedings{summarizationofmultidocumenttopic,
  title = {Summarization of Multi-Document Topic Hierarchies using Submodular Mixtures},
  author = {Ramakrishna Bairi and Rishabh Iyer and Ganesh Ramakrishnan and Jeff Bilmes},
  year = {2015},
  booktitle = {IJCNLP 2015 7},
  url = {https://aclanthology.org/P15-1054},
}