His Einsichten, 1985: t.p. (Urs Sibler) p. 5 (b. 1947)
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Kulturförderung des Kantons Luzern WWW site, viewed May 11, 2017 : Innerschweizer Kulturstiftung press release (Urs Sibler, Kunstvermittler/Kurator; born 1947 in Kriens)
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Library of Congress Authorities online (2002-) http://id.loc.gov/authorities/names/n86002824 | |