@techreport{SchenkWaechterWeiser2007, author = {Olaf Schenk and Andreas W{\"a}chter and Martin Weiser}, title = {Inertia Revealing Preconditioning For Large-Scale Nonconvex Constrained Optimization}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {07-32}, language = {eng}, year = {2007} }