@techreport{plt-tr2004-framework-v209,
  author = {PLT},
  title = {{PLT} Framework: {GUI} Application Framework},
  number = {PLT-TR2004-framework-v209},
  type = {Reference Manual},
  institution = {PLT Scheme Inc.},
  month = {December},
  year = {2004},
  url = {http://download.plt-scheme.org/doc/209/pdf/framework.pdf},
  note = {\url{http://plt-scheme.org/techreports/}}
}