Shotov A.P. ,     Dadarlat D. ,     Candea R.M. ,     Turgu R. ,     Biro L.P. ,     Zasavitskii I.I. ,     Valeiko M.V. Size effects in polycrystalline PbSe films obtained by chemical deposition. Phys. status solidi A , Vol.108,N2 , с. C.637-641 , 01.1988   Matsonashvili B.N. ,     Zasavitskii I.I. ,     Valeiko M.V. ,     Matveenko A.V. ,     Rukhadze Z.A. Quantum-size and deformation effects in PbTe/Pb_1-xSn_xTe and PbSe/Pb_1-xEu_xSe structures. Superlattices and Microstructures , Vol.9,N2 , с. P.195-201 , 01.1991