# Willamowski-Roessler model, Z. Naturforsch. A 35, 317 (1979). dx/dt=x*(a1 - km1*x - z - y) + km2*y^2 + a3 dy/dt=y*(x - km2*y - a5) + a2 dz/dt=z*(a4 - x - km5*z) + a3 param km1=0.25, km2=1e-3, km5=0.5 param a1=30, a2=0.01, a3=0.01, a4=13, a5=10 done