@InProceedings{bairi-EtAl:2015:ACL-IJCNLP,
  author    = {Bairi, Ramakrishna  and  Iyer, Rishabh  and  Ramakrishnan, Ganesh  and  Bilmes, Jeff},
  title     = {Summarization of Multi-Document Topic Hierarchies using Submodular Mixtures},
  booktitle = {Proceedings of the 53rd Annual Meeting of the Association for Computational Linguistics and the 7th International Joint Conference on Natural Language Processing (Volume 1: Long Papers)},
  month     = {July},
  year      = {2015},
  address   = {Beijing, China},
  publisher = {Association for Computational Linguistics},
  pages     = {553--563},
  url       = {http://www.aclweb.org/anthology/P15-1054}
}