00367nam a2200121Ia 450000500170000000800410001702000180005808200210007610000210009724500650011826000510018330000110023420241205140338.0231221s9999    xx            000 0 und d  a9780520243835  a701.15  ARN;1  R  aArnheim, Rudolf. 0aArt and visual perception : a psychology of the creative eye  c1974bUniversity of California PressaBerkeley  ax, 508