_:Bb209c2224bd10408218228a69d0370b2 . "N.J.C." . "N.J.C. Kouwenberg" . "Kouwenberg, Norbertus Johannes Cornelis" . . "Kouwenberg, Bert" . . "Kouwenberg" . "1946"^^ . . "2017: Former researcher at Leiden University" . "Kouwenberg, N.J.C. (1946-)" . _:Bb209c2224bd10408218228a69d0370b2 . _:Bb209c2224bd10408218228a69d0370b2 . _:Bb209c2224bd10408218228a69d0370b2 "2023-05-22"^^ . _:Bb209c2224bd10408218228a69d0370b2 . _:Bb209c2224bd10408218228a69d0370b2 . _:Bb209c2224bd10408218228a69d0370b2 "15717848X" . _:Bb209c2224bd10408218228a69d0370b2 . _:Bb209c2224bd10408218228a69d0370b2 . _:Bb209c2224bd10408218228a69d0370b2 .