V. K. Singh, S. R. Singh, and B. B. Pal in
Semiconductor Science and Technology, 6, Nº 4, pp. 231-236 (April 1991)
Chakrobarti, P.; Shrestha, N. L.; Srivastava, S.; Khemka, V. in
IEEE TED, 39, Nº 9,
pp. 2050ff.
(September 1992)
Pal, B. P.; Chattopadhyay, S. N.; Mishra, S.; Singh, S.; Khan, R. U. in
IEEE TED, 41, Nº 4, pp. 491ff. (April 1994)
Pal, B. P.; Shubha; Honey Kumar, K.; Khan, R. U. in
Solid-State Electronics, 38, Nº 5, pp. 1097ff. (1995)