Search "Prijswinnaars," then "last name = 'kooten,'" in "Edison Awards". Edison Awards. Archived from the original on 14 December 2009. Retrieved 28 July 2009.
Search "Prijswinnaars," then "last name = 'kooten,'" in "Edison Awards". Edison Awards. Archived from the original on 14 December 2009. Retrieved 28 July 2009.