"1863" . "Pieter" . "29558" . "HECKERS, PIETER |f [componist]" . "be" . . "1891"^^ . "1891" . "componist" . "Heckers" . "Heckers" . "HECKERS, PIETER" . "componist" . "1863"^^ . . "https://www.svm.be/componisten/heckers-pieter" . "29558" . "Pieter" . . "1863 1891 29558 HECKERS, PIETER HECKERS, PIETER |f [componist] Heckers Pieter be componist https://www.svm.be/componisten/heckers-pieter" . .