@inproceedings{Southall:2003:GEOREF,
  author = {Southall, Humphrey},
  title  = {Defining and identifying the roles of geographic references within text},
  booktitle = {Proceedings of the HLT-NAACL 2003 Workshop on Analysis of Geographic References},
  editor = {Andr\'{a}s Kornai and Beth Sundheim},
  url    = {http://www.aclweb.org/anthology/W03-0111.pdf},
  year   = 2003,
  pages  = {69--78}