| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| The Individuality of Colour: Contributions to a Methodical Schooling in Colour Experience | 978-1-85584-226-7 (1-85584-226-2) | 2009 | Gerard Wagner |
"E. K." · E Koch · E. Wagner · Elisabeth Koch · Elisabeth Wagner · W. K. · W. Koch