Ref:KUHN Zur Kenntnis des Thiochroms P8YWMETV
De Commission Historique
Vetter, Hellmuth;Kuhn, Richard. "Zur Kenntnis des Thiochroms." Berichte der deutschen chemischen Gesellschaft (A and B Series) 68 (1935) : 2375-2385.
http://chemistry.europe.onlinelibrary.wiley.com/doi/10.1002/cber.19350681240
