H. Gollnick

• Festschrift on the Occasion of the 65th Birthday of Professor Constantin E. Orfanos
• RALGA - the First Association of Retinaldehyde and Glycolic Acid
• Festschrift on the Occasion of the 65th Birthday of Professor Constantin E. Orfanos : Special Topic Issue
• Geschichte der deutschsprachigen Dermatologie
• RALGA - the First Association of Retinaldehyde and Glycolic Acid : A New Compound for the Acne Patient with Depigmenting PropertiesSatellite Symposium Held at the 12th Congress of the EADV, Barcelona, October 2003Supplement Issue
• Retinoids - Experimental and Clinical Results : 17th World Congress of Dermatology, Berlin, May 1987Satellite Symposium 'Retinoids - Experimental Results' and CMD Symposium 'Retinoids - Present Status' : ProceedingsSupplement Issue