Leadership – transdisciplinary writings. Dedicated to Prof. Dr. Dr. h.c. Werner G. Faix on the Occasion of his 70th Birthday by Redaktion SIBE | 18.11.2021
Competence. Festschrift Prof. Dr. John Erpenbeck on the occasion of his 70th birthday. Band 4. by Redaktion SIBE | 18.11.2021
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