Phonetic String Matching
Overviews and Comparisons
Zobel and Dart’s SIGIR 1996 paper
Soundex
U.S. National Archive site
with the Soundex rule
RootsWeb Soundex
converter
The Daitch-Mokotoff Soundex system
for handling Jewish names
Source code
for the Soundex system
Metaphone and Double Metaphone
Larry Philips’s Double Metaphone paper
Implementations and use of Double Metaphone