11,936 followers Prof Dr Richard S.J. Tol MAE @RichardTol #selfie http://t.co/PdGyRvLkfI #openaccess https://t.co/Thzi6acl19 19 Oct 2014 Reply Repost Favourite
11,936 followers Prof Dr Richard S.J. Tol MAE @RichardTol #selfie http://t.co/5duEqYHy0z 04 Aug 2014 Reply Repost Favourite