pregexp.bib

@book{friedl:regex,
  author = "Jeffrey E. F. Friedl",
  title = "\urlh{http://regex.info}{Mastering Regular
    Expressions}",
  publisher = "O'Reilly",
  edition = "2d",
  year = 2002,
}

@misc{r6rs,
  author = "Michael Sperber and R. Kent Dybvig and Matthew Flatt and
    Anton {von Straatan (eds)}",
  title = "\urlp{Revised$^6$ Report on the Algorithmic Language Scheme
    (``R6RS'')}{http://www.r6rs.org/final/html/r6rs/r6rs.html}",
year = 2007,
note = "Formal Semantics: Robert Bruce Findler and Jacob Matthews",
}

@book{pperl,
  author = "Larry Wall and Tom Christiansen and Jon Orwant",
  title = "\urlh{http://www.oreilly.com/catalog/pperl3}{Programming Perl}",
  publisher = "O'Reilly",
  year = 2000,
  edition = "3rd",
}