@techreport{plt-tr2007-t-y-scheme-v370,
  author = {Dorai Sitaram},
  title = {Teach Yourself Scheme in Fixnum Days},
  number = {PLT-TR2007-t-y-scheme-v370},
  type = {Introduction},
  institution = {PLT Scheme Inc.},
  month = {May},
  year = {2007},
  url = {http://download.plt-scheme.org/doc/370/pdf/t-y-scheme.pdf},
  note = {\url{http://plt-scheme.org/techreports/}}
}