Martínez-Harder, M.: Messungen von BrO und anderen Spurenstoffen in der bodennahen Troposphäre, PhD Thesis, Heidelberg. [online] Available from: http://hdl.handle.net/11858/00-001M-0000-0014-98A4-7, n.d.

Röckmann, T.: Measurement and Interpretation of ¹³C, ¹⁴C, ¹⁷O and ¹⁸O Variations in Atmospheric Carbon Monoxide, PhD Thesis, Heidelberg. [online] Available from: http://hdl.handle.net/11858/00-001M-0000-0014-989C-A, n.d.

Tchameni, R.: Evolution tectono-magmatique à l'archéen et au paléoproterozoique du Craton du Congo, Région d'Ebolowa, Sud Cameroun, PhD Thesis, Paris. [online] Available from: http://hdl.handle.net/11858/00-001M-0000-0014-9838-A, n.d.