Paper  bibtex   

@unpublished{krifka2007,
  author = {Manfred Krifka},
  date = {2007},
  location = {Santa Cruz, CA},
  note = {Paper presented at University of California at Santa Cruz},
  title = {More on the Difference between \textit{more than two} and \textit{at least three}},
  url = {http://amor.cms.hu-berlin.de/~h2816i3x/Talks/SantaCruz2007.pdf},
}