Keywords: Ceo-spectrumpohl.png Blackbody radiation in comparison to gas mantle based on CeO2/ThO2 Source of data R W Pohl Optik und Atomphysik Own drawing No claim for rights 2006-09-01 own assumed Anton~commonswiki Check categories 2009 February 10 de wikipedia Glühstrumpf 1 derivative works Ceo-spectrumpohl mit sichtbar png Gas mantles z |