Keller, Hans-Ulrich. | Zur Didaktik von Planetariumsvorführungen
VIAF ID: 1145066986966631308 ( Work )
Permalink: http://viaf.org/viaf/1145066986966631308
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Keller, Hans-Ulrich.
Language | Title | Expression | Sources |
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English | Educator's handbook for planetarium programs | 1980 |