@unpublished{HalbigHuembsRoeseletal.2021, author = {Halbig, Katrin and H{\"u}mbs, Lukas and R{\"o}sel, Florian and Schewe, Lars and Weninger, Dieter}, title = {Computing optimality certificates for convex mixed-integer nonlinear problems}, url = {https://opus4.kobv.de/opus4-trr154/476}, year = {2021}, language = {en}, type = {Preprint}, institution = {TRR 154} }