A stochastic model was developed for the A + B  O reaction on a discrete lattice. The system could include mono-molecular and bi-molecular steps (reaction and diffusion steps). The resultant infinite chain of equations was truncated at a certain level via a modified Kirkwood approximation.

V.N.Kuzovkov: Radiation Effects and Defects in Solids, 1995, 134[1-4], 137-9