@article{kraines-2001a,
  author         = {David Kraines and Vivian Kraines},
  title          = {Protocols for Cooperation; Cultural Diversity of Strategies for the Alternating Prisoner's Dilemma},
  year           = {2001},
  annote         = {Paper was submitted, not clear to where from author's home site},
  journal        = {\it{only submitted, not in journal yet}},
  url            = {http://www.math.duke.edu/~dkrain/ProtCoop.pdfq},
  key            = {kraines-2001a}
}