@string{CONLL:02 = {Proceedings of the 6th {C}onference on 
                    {N}atural {L}anguage {L}earning}},

@inproceedings{Malouf:02,
  author = {Robert Malouf},
  year = 2002,
  title = {A Comparison of Algorithms for Maximum Entropy 
           Parameter Estimation},
  booktitle = CONLL:02,
  address = {Taipei, Taiwan}
}