@techreport{GamrathKochMartinetal.2013, author = {Gerald Gamrath and Thorsten Koch and Alexander Martin and Matthias Miltenberger and Dieter Weninger}, title = {Progress in Presolving for Mixed Integer Programming}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {13-48}, language = {eng}, year = {2013} }