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Books By Stefan Aichbauer, Martina Buchhauser, Agnes Erben, Sven Steinert, Detlef Tietze, Emilia Wiking - Author

Stefan Aichbauer is Managing Partner at H&Z having both accompanied and driven H&Z on its growth path. While his duties include a broad range of responsibilities, his passion is on transformation and sustainability - combined they are the major challenge most corporates will face in the decade to come.

Martina Buchhauser is a global leader with a deep understanding of the automotive industry and its transformation to new technologies and a responsible and CO2-reduced business. She is a non-executive director of various advisory boards and a senior advisor of boutique consulting firm, H&Z, specialized in strategy, procurement, and sustainability.

Agnes Erben is Partner at H&Z and manages projects to professionalize procurement organizations. Agnes started her professional career as a strategic purchaser for production material at MTU Aero Engines. There she got to know strategic, tactical and operational challenges as well as her passion for p