control field
| format
| control field | |
| commun. IT | styrefelt |
| format | |
| agric. industr. | størrelse |
| comp., MS | formatere |
| industr. construct. | papirformat |
| work.fl. IT | angivelse af format |
| |||
| sorteringsfelt; styrefelt | |||
| |||
| styrefelt | |||
|
control field : 8 phrases in 6 subjects |
| Communications | 2 |
| Electronics | 1 |
| Energy industry | 2 |
| Information technology | 1 |
| Life sciences | 1 |
| Natural sciences | 1 |