New authors

Diana Westerbarkey is a process group leader at Rottendorf Pharma GmbH and is responsible for the qualification of equipment in the areas of laboratory, production and packaging. Diana Westerbarkey has many years of professional experience in the areas of quality assurance, quality control and auditing and inspection.

Steffen Wöllner is an expert in the automation of pharmaceutical water, ultrapure media and industrial wastewater plants. As Central Branch Manager, he provides services, consultancy and training in these areas. He is also an active author and speaker.