Lysark fra forelesninger
Utvalgte kapitler fra f?lgende b?ker
Jurafsky, D., & Martin, J. M. : Speech and Language Processing, 2008. New Jersey, NJ: Prentice-Hall. Second Edition. (On-Line Information).
S. Bird, E. Klein and E. Loper: Natural Language Processing with Python, 2009. O'Reilly. ISBN: 978-0-596-51649-9. Kapittel 8 + noen mindre utvalg. Full online utgave.
Wikipedia: X-bar theory
Supplerende tilleggslitteratur
S. Bird, E. Klein and E. Loper: Natural Language Processing with Python, Bakgrunn (fra INF1820): s?rlig Kap 1, 2.1, 2.3, 3.2.
Stuart M. Shieber: An Introduction to Unification-Based Approaches to Grammar, s. 1-32 Full tekst tilgjengelig