Michael Erkelenz presenting on the Rheinhold & Mahla Group integration to the Bilfinger Berger Group at the International Management Conference, November 7, 2002, A3054-00341. Missouri Historical Society Library and Research Center.

Michael Erkelenz presenting on the Rheinhold & Mahla Group integration to the Bilfinger Berger Group at the International Management Conference, November 7, 2002, A3054-00341. Missouri Historical Society Library and Research Center. https://mohistory.mobiusconsortium.org/repositories/2/digital_objects/16842 Accessed November 13, 2024.