@techreport{plt-tr2009-more-v4.2.3,
  author = {PLT},
  title = {More: Systems Programming with {PLT} Scheme},
  number = {PLT-TR2009-more-v4.2.3},
  type = {Introduction},
  institution = {PLT Scheme Inc.},
  month = {December},
  year = {2009},
  url = {http://download.plt-scheme.org/doc/4.2.3/pdf/more.pdf},
  note = {\url{http://plt-scheme.org/techreports/}}
}