"1898" . "https://imslp.org/wiki/Category:Gershwin,_George" . "https://viaf.org/viaf/61554329" . "https://www.wikidata.org/entity/Q123829" . . "GERSHWIN, GEORGE" . "George" . "componist" . "op een thema van" . "1937" . "Gershwin" . "https://isni.org/isni/0000000121355968" . "1937-07-11" . "https://musicbrainz.org/artist/65744963-191a-44ef-a3c7-b693a808a158" . "http://id.loc.gov/authorities/names/n79077265" . "9863" . "http://data.beeldengeluid.nl/gtaa/101752" . "us" . "GERSHWIN, GEORGE |f [op een thema van]" . . "GERSHWIN, GEORGE |f [componist]" . "GERSHWIN, GEORGE" . "https://data.muziekweb.nl/Link/M00000237497" . "http://data.bibliotheken.nl/id/thes/p070174490" . "1898-09-26" . "https://www.discogs.com/artist/261293" . "d" . "1833" .