Corrections, comments and suggestions are welcome
| Address: | Email: mailto:per.tveit@uia.no |
| Per Tveit, dr. ing. docent emeritus | Phone (work): +47 37 23 32 36 |
| Agder University | Phone (home): +47 37 04 40 36 |
| PO Box 509 | Fax: +47 37 25 30 01 |
| N-4898 Grimstad | |
| Norway |