About the Author Dr. Jochen Balla teaches Applied Mathematics and Physics, as well as the Fundamentals of Computer Science at the University of Applied Sciences Bochum, Germany. From 1998 to 2004, he worked for SAP Deutschland GmbH & Co. KG as a training consultant for customer and partner trainings in the areas of SAP PP, APO-PP/DS, and APO CIF.
Trustpilot
2 months ago
1 month ago
