1. D. Devries and A. A. Khan, J. Electron. Mater.,18, 763 (1989).
2. Zheng Xiangqin, Proc. Intern. Conf. on Semiconductor and Integrated Circuit Technology, Beijing, 1986, publ. Singapore (1986), p. 758.
3. T. Dabek, W. Darowski, and K. Korbel, Elektronika,30(6), 23 (1989).
4. L. S. Berman and A. A. Lebedev, Capacitative Spectroscopy of Deep Centers in Semiconductors [in Russian], Nauka, Leningrad (1981).
5. S. Li. Sheng, T. T. Chiu, and R. Y. Loo, IEEE Trans. Nucl. Sci.,NS-28, 4113 (1981).