DescriptionPorphin.svg Deutsch: Struktur von Porphin English: Structure of porphin Date 20 March 2007 Source Own work Author NEUROtiker Permission (Reusing
DescriptionPorphyrin 200.svg English: Structure of porphyrin Deutsch: Struktur von Porphyrin Date 11 April 2014 Source Own work Author Emeldir (talk) SVG development