• 

  Photoeffekt, Photonenhypothese

  http://www.uni-ulm.de/fileadmin/website_uni_ulm/nawi.inst.251/Didactics/quantenchemie/html/PhEff-F.html

  Photoeffekt, Fotoeffekt, Photonenhypothese

• 

  Inhalt

  http://www.uni-ulm.de/fileadmin/website_uni_ulm/nawi.inst.251/Didactics/quantenchemie/html/inhalt.html

  Inhalt der Quantentheorie-Site

• 

  Roentgenstrahlung

  https://web.archive.org/web/20100428113525/http://www.pctheory.uni-ulm.de/didactics/quantenchemie/html/Roentgen.html

  Roentgenstrahlung

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