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Published online by Cambridge University Press: 22 July 2013
This is brief summary of the joint discussion about GRB afterglows held in Marbelladuring the Gamma-Ray Burst Symposium 2012. It is based on hints proposed by many authorsin their talks and offers a (personally biased) view of some of the open issues in thefield. No attempts have actually been applied to really cover all the discussed subjects,and consequently only a few topics are chosen as representatives of the activities goingon in the field, admittedly with some emphasis for observational results.