| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Hydrogen Power: Theoretical And Engineering Solutions: Proceedings Of The Hypothesis Ii Symposium Held In Grimstad, Norway, 18-22 August 1997 | 978-90-481-5029-8 (90-481-5029-9) | 2010 |
| Hydrogen Power: Theoretical and Engineering Solutions: Proceedings of the Hypothesis II Symposium held in Grimstad, Norway, 18-22 August 1997 | 978-0-7923-5062-0 (0-7923-5062-6) | 1998 |