@techreport{plt-tr2008-syntax-v4.0,
  author = {PLT},
  title = {Syntax: Meta-Programming Helpers},
  number = {PLT-TR2008-syntax-v4.0},
  type = {Reference Manual},
  institution = {PLT Scheme Inc.},
  month = {June},
  year = {2008},
  url = {http://download.plt-scheme.org/doc/4.0/pdf/syntax.pdf},
  note = {\url{http://plt-scheme.org/techreports/}}
}