@Article{birk-2000a,
  author         = {Andreas Birk},
  title          = {Boosting cooperation by evolving trust},
  year           = {2000},
  volume         = {14},
  pages          = {769--784},
  read-status    = {read},
  citeseer-url   = {http://citeseer.nj.nec.com/birk00boosting.html},
  journal        = {Applied Artificial Intelligence},
  key            = {birk-2000a}
}