1. Christo Pimpirev, geologist, Sofia University “St. Kliment Ohridski”

2. Borislav Kamenov, geologist, Sofia University “St. Kliment Ohridski”

3. Zlatil Vergilov, geologist, Sofia University “St. Kliment Ohridski”

4. Nikolai Mihnevski, meteorologist, Institute of Hydrology and Meteorology

5. Asen Chakurov, Engineer, Technical University

6. Stephan Kaloyanov, Radio-operator, Institute of Metallography

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