Kreek, Jaap de. Prikkels Post Tarieven.
Koene, S(imon). Vogels
Eikeboom, Henk. Prometheus spreekkoor.
Mensinga, Jan. Liggende man. PF 1960 J.G. Kooy, H. Blokland.
Wiessner, Edmund. Vollstšndiges WŲrterbuch zu Niedharts Liedern.
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