@misc{HintermuellerMordukhovichSurowiec2011, author = {Michael Hinterm{\"u}ller and Boris S. Mordukhovich and Thomas Surowiec}, title = {Several Approaches for the Derivation of Stationarity Conditions for Elliptic MPECs with Upper-Level Control Constraints}, institution = {Humboldt-Universit{\"a}t zu Berlin}, type = {preprintmatheon}, year = {2011}, }