. . "Wilhem de Haan" . "Wilhem" . "Haan, Wilhem de (1801-1855)" . "natuurwetenschapper" . "1855-04-15"^^ . _:Bfc1fe81ea145fe3c4a9c817b2fa936b9 . "haan057" . "de Haan" . . . "Amsterdam" . "Wilhem de Haan" . "1801-02-07"^^ . _:Bfc1fe81ea145fe3c4a9c817b2fa936b9 . _:Bfc1fe81ea145fe3c4a9c817b2fa936b9 "2021-02-08"^^ . _:Bfc1fe81ea145fe3c4a9c817b2fa936b9 . _:Bfc1fe81ea145fe3c4a9c817b2fa936b9 . _:Bfc1fe81ea145fe3c4a9c817b2fa936b9 . _:Bfc1fe81ea145fe3c4a9c817b2fa936b9 . _:Bfc1fe81ea145fe3c4a9c817b2fa936b9 .