Helbig, Erich.
VIAF ID: 52210982 ( Personal )
Permalink: http://viaf.org/viaf/52210982
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- 100 1 _ ‡a Helbig, Erich
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Works
Title | Sources |
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Grundlagen der Lichtmesstechnik | |
Podstawy fotometrii / Erich Helbig. - Warszawa, 1975. |