A suitable formalism was developed in order to treat the problem of diffusion in polycrystalline systems while taking account of the formation of complexes. The results of the calculations showed that the formation of complexes decreased the concentration of free impurities.

V.A.Rekshinskii, F.L.Dolganskaya: Neorganicheskie Materialy, 1994, 30[2], 179-82 (Inorganic Materials, 1994, 30[2], 172-5)