Chris Whidden, & The Pennsylvania State University Cite Seer X Archives. (2005). Simple and Effective Question Processing using Regular Expressions and Word Net. http://web.cs.dal.ca/~whidden/TR05 Question Processing.Pdf.
ISO-690 (author-date, English)CHRIS WHIDDEN und THE PENNSYLVANIA STATE UNIVERSITY CITESEERX ARCHIVES, 2005. Simple and Effective Question Processing using Regular Expressions and Word Net. http://web.cs.dal.ca/~whidden/TR05 Question Processing.pdf. 1 Januar 2005.
Modern Language Association 9th editionChris Whidden, und The Pennsylvania State University Cite Seer X Archives. „Simple and Effective Question Processing Using Regular Expressions and Word Net“. http://web.cs.dal.ca/~whidden/TR05 Question Processing.Pdf, Januar 2005.
Mohr Siebeck - Recht (Deutsch - Österreich)Chris Whidden/The Pennsylvania State University Cite Seer X Archives: Simple and Effective Question Processing using Regular Expressions and Word Net, http://web.cs.dal.ca/~whidden/TR05 Question Processing.pdf 2005,
Emerald - HarvardChris Whidden und The Pennsylvania State University Cite Seer X Archives. (2005), „Simple and Effective Question Processing using Regular Expressions and Word Net“, http://web.cs.dal.ca/~whidden/TR05 Question Processing.Pdf.