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13 ideas

Was könnte es an einem Heftumschlag für Schüler besonderes geben ?

created over 2 years ago, last activity over 2 years ago
5 ideas

Welche gemeinsamen Interessen haben Ideengeber mit mittelbegrenzten Anwendern ?

created over 2 years ago, last activity over 2 years ago
11 ideas

Ideen für billige Weihnachtsgeschenke

created over 3 years ago, last activity over 2 years ago
16 ideas

Grenzen der Optimierung

created over 3 years ago, last activity over 2 years ago