@article{DBLP:journals/pami/DonatoBHES99,
  author    = {Gianluca Donato and
               Marian Stewart Bartlett and
               Joseph C. Hager and
               Paul Ekman and
               Terrence J. Sejnowski},
  title     = {Classifying Facial Actions},
  journal   = {IEEE Trans. Pattern Anal. Mach. Intell.},
  volume    = {21},
  number    = {10},
  year      = {1999},
  pages     = {974-989},
  ee        = {http://doi.ieeecomputersociety.org/10.1109/34.799905},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}