Permuterm Subject Index

Permuterm index is a kind of indexing used by Institute for Scientific Information in their citation indexes. It is pretty much the same as KWIC indexing.


Permuterm Subject Index is a system which permits users to find papers by providing all possible permuted pairs of title words.






Garfield, E. (1976). Permuterm Subject Index: Autobiographical review. Journal of the American Society for Information Science, 27(5-6), 288-291. Also available from:




Birger Hjørland

Last edited: 28-01-2006