@Unpublished{bolton-2001a,
  author         = {Gary E Bolton and Elena Katok and Axel Ockenfels},
  title          = {What's in a reputation? Reputation Systems for Supply Chain Management},
  year           = {2001},
  note           = {This is a slideshow.},
  url            = {http://www.ise.ufl.edu/scmec/katok.pdf},
  organization   = {LEMA},
  key            = {bolton-2001a}
}