@inproceedings{Daniel-etAl:2003:DUC,
  author = {Daniel, Naomi  and  Radev, Dragomir  and  Allison, Timothy},
  title  = {Sub-event based multi-document summarization},
  booktitle = {Proceedings of the HLT-NAACL 03 Text Summarization Workshop},
  editor = {Dragomir Radev and Simone Teufel},
  url    = {http://www.aclweb.org/anthology/W03-0502.pdf},
  year   = 2003,
  pages  = {9--16}