Library of Congress Authorities online (2002-) http://id.loc.gov/authorities/names/n84185888
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Oxford art online, viewed January 7, 2014 (Allianz; Swiss group of painters and sculptors, founded in 1937; first group exhibition was held in 1938 in Basel, followed by another in Zurich in 1942; later group shows were held in Zurich at the Galerie des Eaux Vives starting in 1944; exhibitions continued into the 1950s) |