Volume 4 - Quality Assurance in the Process Landscape. Bundle of Sections 1-4: General, Risikoanalysen, Methoden und Vorgehensmodelle. 3rd, fully revised and expanded edition, March 2021
Volume 4 - Quality Assurance in the Process Landscape. Section 1: General, Methods Overview, Elementary Aids, Development Processes. 3rd, fully revised and expanded edition, March 2021