Markus Kniebes Journal urn:uuid:562e769a0b0d31947c87814c2f739ba1 2021-24-10T19:04:17 <![CDATA[Ascending and Descending in Lego]]> urn:uuid:1340 2002-10-10T15:42:00 Und wieder mal Lego: Escher's „Ascending and Descending

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Markus Kniebes kniebes@pm.me