1. J. Kowalski, W. Stancyk and J. Chojnowski, Rev. Si, Ge, Sn and Pb Compds., 6 (1982) 225.
2. RV. Subramanian and K.N. Somasekharan, J. Macromol. Sci. -Chem., A16 (1981) 73.
3. D. Atherton, J. Verborgt and M.A.M. Winkler, J. Coat. Technol., 51 (1979) 823.
4. C.J. Evans and R Hill, Rev. Si, Ge, Sn and Pb Compds., 7 (1983) 57.
5. N.A. Ghanem, N.N. Messiha, N.E. Ikladious and A.F. Shaaban, Eur. Polym. J., 16 (1980) 339, 1047; idem.,) Appl. Polym. Sci., 26 (1981) 97.