Literatuur
- Pevsner's Architectural Glossary. New Haven & London (Yale University Press), 2016 2e druk/(1e druk: 2010). [144 blz. ISBN 978.0.300.22368.2]. Hierin blz. 24 ("Addorsed. Descriptive of two figures places back to back. Compare affronted" - dit is de volledige tekst).