Media type: Article Title: Nel cielo sopra Berlino - Otto Piene Contributor: Spagnesi, Licia [Author]; Piene, Otto [Ill.] imprint: 2014 Published in: Arte ; (2014), 492, Seite 87-91 Language: Italian ISSN: 1122-5858 Keywords: Piene, Otto Origination: Footnote: