@article{Winston-etal87,
  author	= {Winston, M. E. and Chaffin, R. and Herrman, D. J.},
  year		= {1987},
  title		= {A Taxonomy of Part-Whole Relations},
  journal	= {Cognitive Science},
  volume	= {11},
  number	= {4},
  pages		= {417--444}
}