"1952"^^ . . "nl" . "Velzen, Hans van (1952-)" . "Hans van Velzen" . "aanv. werkzaam bij NBLC (Den Haag); van 1978-1988: dir. OB Spijkenisse; van 1988-2014: directeur OB & Leeszaal Amsterdam (OBA)"@nl . "Velzen, J.H.M. van" . _:B71f220e47110174c92721163c321c562 . "van Velzen" . . "Hans" . _:B71f220e47110174c92721163c321c562 . _:B71f220e47110174c92721163c321c562 . _:B71f220e47110174c92721163c321c562 "2023-05-22"^^ . _:B71f220e47110174c92721163c321c562 . _:B71f220e47110174c92721163c321c562 . _:B71f220e47110174c92721163c321c562 "072920327" . _:B71f220e47110174c92721163c321c562 . _:B71f220e47110174c92721163c321c562 . _:B71f220e47110174c92721163c321c562 .