| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Didgeridoo leicht erlernen | 978-3-938263-25-9 (3-938263-25-3) | 2009 | Klaus Fritsch | |
| Introduction to Environmental Engineering | 978-0-470-16505-8 (0-470-16505-7) | 2009 | James R. Mihelcic · Julie B. Zimmerman · Martin T. Auer · David J. Hand · Richard E. Honrath · Mark W. Milke · Kurt Paterson |