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Books about Zilverberg:
Zomer te Zilverberg by Lebeau Paul (1962)
Omnibus: De zondebok / Het Siegfriedmotief of de overbodigen / Zomer te Zilverberg by Lebeau Paul (1985)
Wiki information Zilverberg:
Huub Zilverberg is a Dutch former professional road bicycle racer. In 1962, Zilverberg won a stage in the Tour de France and in the Giro d'Italia.