1. The Design Process;Aspelund,2010
2. Integrating customer requirements into product designs;Bailetti;J. Prod. Innov. Manag.,1995
3. The development of the hierarchy of effects: an historical perspective;Barry;J. Curr. Issues Res. Advert.,1987
4. A review and critique of the hierarchy of effects in advertising;Barry;Int. J. Advert.,1990