00966cz a2200205n 4500 n 2012066725 DLC 20250804192344.9 121015n| azannaabn |a aaa n 2012066725 Q450600 wikidata https://www.wikidata.org/wiki/Q450600 57366873 viaf http://viaf.org/viaf/57366873 DLC eng rda DLC NNPM Gardini, Etelka, 1856-1920 Opera lcsh Sopranos (singers) lcsh Gerster, Etelka, 1856-1920 Gerster-Gardini, Etelka, 1856-1920 La sonnambula, 1879 DLC copy theater program, Academy of Music, Philadelphia performance (Mme. Etelka Gerster) VIAF, viewed May 18, 2022 VIAF ID: 57366873 (Gardini, Etelka; female; other names: Gerster, Etelka (earlier name), Gerster-Gardini, Etelka, Gerster Gardini, Etelka, Gardini, Etelka Gerster; dates: 1856-1920, birth years also listed as 1855 and 1857; singer)