tickets 4 September 2013/by Rob Speekenbrink https://www.tedxdelft.nl/wp-content/uploads/2016/02/TEDxDelftLogoWebsite.jpg 0 0 Rob Speekenbrink https://www.tedxdelft.nl/wp-content/uploads/2016/02/TEDxDelftLogoWebsite.jpg Rob Speekenbrink2013-09-04 19:51:372013-09-04 19:51:37tickets