@techreport{plt-tr2004-tools-v206,
  author = {Robert Bruce Findler},
  title = {{PLT} Tools: {DrScheme} Extension Manual},
  number = {PLT-TR2004-tools-v206},
  type = {Reference Manual},
  institution = {PLT Scheme Inc.},
  month = {January},
  year = {2004},
  url = {http://download.plt-scheme.org/doc/206/pdf/tools.pdf},
  note = {\url{http://plt-scheme.org/techreports/}}
}