- Author: Harald Falck-Ytter
- Language: Norwegian
- Year: 1991
- Author: Harald Falck-Ytter
- Language: Norwegian
- Year: 1993
- Author: Kristensen Roar
- Language: Norwegian
- Year: 1996
Prosesskjemi
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- Author: Ignatowitz Eckhard
- Language: Norwegian
- Year: 1999
- Author: Gudbrandsen Jan-Are
- Language: Norwegian
- Year: 1995
- Author: Håberg Kirsten Røvig
- Language: Norwegian
- Year: 1994
- Author: Larsen Olav
- Language: Norwegian
- Year: 1994
- Author: Larsen Olav
- Language: Norwegian
- Year: 1992
- Author: Larsen Olav
- Language: Norwegian
- Year: 1994
- Author: Brinchmann Henry
- Language: Norwegian
- Year: 1997