TY JOUR TI TO THE SOLUTION OF ISSUES OF NONSTATIONARY DIFFUSION IN LAYERED ENVIRONMENTS KW nonstationary diffusion KW Fick's law KW layered structures KW nonstationary boundary conditions of the third kind KW boundary conditions of conjugation of the fourth kind. JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Vendin, S.V. PY 2019 IS 4 PB Belgorod State Technological University named after V.G. Shukhov