My name is Martin Penno, member of the German Wikimedia Deutschland e.V.
I studied chemistry and hold a PhD degree in physical chemistry.
I am an enthusiastic wikipedia user. Sometimes, I improve wikipedia pages
Penno~dewiki (talk) 05:29, 16 June 2018 (UTC)Cite error: There are <ref>
tags on this page without content in them (see the help page)..