Rebelo, J. (2004). Biosynthesis and function of biological pteridines. Structural studies on tho molybdopterin containing Aldehyde oxido-reducteases from Desulfovibrio desulfuricans ATCC 27774 and Desulfovibrio gigas, and the GTP cyclohydrolase I on E.coli, responsible for the first step of the tetrahydropterin biosynthesis. PhD Thesis, Technische Universität, München.