Positive feedback loops and multistationarity. - René Thomas; J. Richelle (Discret. Appl. Math., 1988)

Frontier Diagrams: Partition of Phase Space According to the Signs of eigenvalues or Sign Patterns of the Circuits. - René Thomas; Marcelle Kaufman (Int. J. Bifurc. Chaos, 2005)

Nullclines and Nullcline Intersections. - René Thomas (Int. J. Bifurc. Chaos, 2006)

A Further Understanding of Phase Space Partition Diagrams. - René Thomas; Pasquale Nardone (Int. J. Bifurc. Chaos, 2009)

Linear and nonlinear Arabesques: a Study of Closed Chains of Negative 2-Element Circuits. - Chris G. Antonopoulos; Vasileios Basios; Jacques Demongeot; Pasquale Nardone; René Thomas (Int. J. Bifurc. Chaos, 2013)