@Article{schwartz2000:color,
  author =       {Schwartz, Eric L. and Cohen, Michael },
  title =        {Color vision and the four-color-map problem?},
  journal =      {Journal of Cognitive Neuroscience},
  volume =       12,
  number =       5,
  pages =        911,
  year =         2000,
  datestr =      200001,
  PMID =         11054931,
}