@techreport{BleyGleixnerKochetal.2009, author = {Andreas Bley and Ambros Gleixner and Thorsten Koch and Stefan Vigerske}, title = {Comparing MIQCP solvers to a specialised algorithm for mine production scheduling}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {09-32}, language = {eng}, year = {2009} }