http://www.kleegestaltungslehre.zpk.org/ee/ZPK/BG/2012/02/16/045/[br]Capitolo: II.16 coniche[br]Sottocapitolo: [16a Ellisse][br]Argomento: costruzione di normali e tangenti[br]Num. inv: BG II.16/45[br]Dimensioni: 21 x 33 cm[br]Tecnica: matita e matita colorata su carta[br]Collocazione: Zentrum Paul Klee, Berna[br]
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