@unpublished{BeckersBehrensWollner2017, author = {Beckers, Susanne and Behrens, J{\"o}rn and Wollner, Winnifried}, title = {Duality Based Error Estimation in the Presence of Discontinuities}, url = {https://opus4.kobv.de/opus4-trr154/205}, pages = {21}, year = {2017}, language = {en}, type = {Preprint}, institution = {TRR 154} }