Date of birth/death1957Other namesHelfenstein JosefPlace of BirthLucerneGND121241092VIAF196423135Groups—KeywordsSwitzerland, Theory and history of art, Curatorial practicesRelated library entries/ 3 entries LibraryPaul Klee. Catalogue raisonné: Band 1, 1883–19121998LibraryPaul Klee. Catalogue raisonné: Band 9, 19402004LibraryRobert Rauschenberg: Cardboards and Related Pieces2007