18774 Alexei Sharov: Self-reproducing systems - structure, niche relations
and evolution. Biosystems 25 (1991), 237-249.

8124 Denis Thieffry/Rene' Thomas: Dynamical behaviour of biological 
regulatory networks II. Immunity control in bacteriophage lambda.
Bull. Math. Biol. 57 (1995), 277-297.

8123 Rene' Thomas/Denis Thieffry/Marcelle Kaufman: Dynamical behaviour of
biological regulatory networks I. Biological role of feedback loops anddd
practical use of the concept of the loop-characteristic state.
Bull. Math. Biol. 57 (1995), 247-276.

18776 ZZ: Metabolische Netzwerke. TU Cottbus ca. 2002, 10p.