A. Wegener

• Festschrift on the Occasion of Otto Hockwin's 70th Birthday : Supplement Issue
• Festschrift on the Occasion of Prof. Hockwin's 70th Birthday
• Scheimpflug Lens Documentation : New Developments and Applications, Bad Honnef, March 1991Supplement Issue
• Scheimpflung Lens Documentation
• The origin of continents and oceans