The following publications are possibly variants of this publication:
- AHA! meets Auld Linky: integrating designed and free-form hypertext systemsDavid E. Millard, Hugh C. Davis, Mark J. Weal, Koen Aben, Paul De Bra. ht 2003: 161-169 [doi]
- Embedding information retrieval in adaptive hypermedia: IR meets AHA!Lora Aroyo, Paul De Bra, Geert-Jan Houben, Richard Vdovjak. nrhm, 10(1):53-76, 2004. [doi]
- The design of AHA!Paul De Bra, David Smits, Natalia Stash. ht 2006: 133-134 [doi]
- The Design of AHA!Paul De Bra, David Smits, Natalia Stash. ht 2006: 171-195 [doi]
- AHAM: A Dexter-Based Reference Model for Adaptive HypermediaPaul De Bra, Geert-Jan Houben, Hongjing Wu. ht 1999: 147-156 [doi]
- Adaptation and search: from Dexter and AHAM to GAFEvgeny Knutov, Paul De Bra, Mykola Pechenizkiy. ht 2010: 281-282 [doi]
- AHA! Adaptive Hypermedia for AllPaul De Bra, Jan-Peter Ruiter. webnet 2001: 262-268
- AHA! the next generationPaul De Bra, A. T. M. Aerts, David Smits, Natalia Stash. ht 2002: 21-22 [doi]
- AHA! The adaptive hypermedia architecturePaul De Bra, A. T. M. Aerts, Bart Berden, Barend de Lange, Brendan Rousseau, Tomi Santic, David Smits, Natalia Stash. ht 2003: 81-84 [doi]