_:B3713821db3ffeb41a7b349f07b628f8b . _:B3713821db3ffeb41a7b349f07b628f8b . _:B3713821db3ffeb41a7b349f07b628f8b "2023-05-20"^^ . _:B3713821db3ffeb41a7b349f07b628f8b . _:B3713821db3ffeb41a7b349f07b628f8b . _:B3713821db3ffeb41a7b349f07b628f8b "069088667" . _:B3713821db3ffeb41a7b349f07b628f8b . _:B3713821db3ffeb41a7b349f07b628f8b . _:B3713821db3ffeb41a7b349f07b628f8b . . "1927"^^ . . "E." . . "Doctoraal examen wis- en natuurk., RUG (1953). Dr. i/d wis- en natuurk., TH Delft (1959). ... Directeur-generaal wetenschapsbeleid, Min. O&W (1975-1991). (In: ANP Bio's)"@nl . "E. van Spiegel" . . "Spiegel, Egbert van" . "Spiegel, E. van (1927-)" . _:B3713821db3ffeb41a7b349f07b628f8b . "van Spiegel" .