5003158755
nonagons (300378914) 'is basis of' nonagonal (300378917);
changeNote
5003158755
nonagons (300378914) 'is basis of' nonagonal (300378917);
description
nonagons (300378914) 'is basis of' nonagonal (300378917);
type
relation added
startedAtTime
2012-02-13T16:18:00