Category:Files by User Hans G. Oberlack/Golden ratio
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Media in category "Files by User Hans G. Oberlack/Golden ratio"
The following 4 files are in this category, out of 4 total.
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GR QQ0 dia.png 1,581 × 1,816; 21 KB
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GR QQ0.png 1,302 × 1,302; 6 KB
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GR QQ1 dia.png 1,590 × 1,816; 23 KB
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GR QQ1.png 1,302 × 1,302; 7 KB