Works
- Kreativ nach Regeln: Methode 635, eine neue Technik zum Lösen von Problemen, Absatzwirtschaft, 1969
In Thinking Tools
Known for
He devised Method 635, a form of brainwriting in which six people each write three ideas on a sheet, then pass the sheets on every five minutes, building on what the others wrote, until each sheet has been around the group.