Note: The first reference does not show the KWIC index unless you pay to view the paper. The second reference does not even list the paper at all.
Manning, C. D.; Schütze, H. (1999). Foundations of Statistical Natural Language Processing. The MIT Press. p. 35. ↩
"Advanced Indexing and Abstracting Practices". Atlantic Publishers & Distributors. 1989. p. 41. Retrieved 26 March 2019 – via Google Books. https://books.google.com/books?id=nIUkl7bLzYUC&dq=Andrea+Crestadoro&pg=PA41 ↩
"KWIC indexes and concordances". Archived from the original on 2016-06-06. Retrieved 2016-06-17. https://web.archive.org/web/20160606141149/http://www.janda.org/workshop/content%20analysis/kwic.htm ↩
"3. Theory of KWIC indexing". Infohost.nmt.edu. Archived from the original on 14 May 2019. Retrieved 26 March 2019. https://web.archive.org/web/20190514012850/http://infohost.nmt.edu/tcc/help/lang/python/examples/kwic/web/theory.html ↩