| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Eco-Logic: Logic-Based Approaches to Ecological Modeling | 978-0-262-18143-3 (0-262-18143-6) | 1991 | David Robertson · Alan Bundy · Robert Muetzelfeldt · Michael Uschold |
| Paper Trails: From Trees to Trash - The True Cost of Paper | 978-0-7535-1329-3 (0-7535-1329-3) | 2008 | |