"ELFFERICH, GEERT" . "https://www.wikidata.org/entity/Q34370" . "1975-03-06" . . "Geert" . "44653" . "ELFFERICH, GEERT" . . "ne" . "1919-11-03" . "42427" . "ELFFERICH, GEERT |f [arrangeur]" . "ELFFERICH, GEERT" . "arrangeur" . "Elfferich, Gerardus" . "componist" . "1975" . "1919" . "Elfferich" . "https://www.wikidata.org/entity/Q60444" . "ELFFRICH" .