Description: Blad ECN
| Magazine | Date | Articles |
|---|---|---|
| Energie Spectrum | January 1983 | 3 |
| Energie Spectrum | February 1983 | 5 |
| Energie Spectrum | March 1983 | 2 |
| Energie Spectrum | April 1983 | 6 |
| Energie Spectrum | May 1983 | 1 |
| Energie Spectrum | July 1983 | 5 |
| Energie Spectrum | December 1983 | 6 |
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