. "19xx" . "J. Roukens" . "Roukens" . "J." . "rouk017" . "J. Roukens" . . . _:Bd6a3e5a4f702eea8caac18cd1cf0167c . "Roukens, J. ((20ste eeuw)-)" . _:Bd6a3e5a4f702eea8caac18cd1cf0167c . _:Bd6a3e5a4f702eea8caac18cd1cf0167c "2021-02-08"^^ . _:Bd6a3e5a4f702eea8caac18cd1cf0167c . _:Bd6a3e5a4f702eea8caac18cd1cf0167c . _:Bd6a3e5a4f702eea8caac18cd1cf0167c . _:Bd6a3e5a4f702eea8caac18cd1cf0167c . _:Bd6a3e5a4f702eea8caac18cd1cf0167c .