Concerning a bound on undetected error probability (Corresp.). - Sik K. Leung-Yan-Cheong; Martin E. Hellman (IEEE Trans. Inf. Theory, 1976)

On a special class of wiretap channels (Corresp.). - Sik K. Leung-Yan-Cheong (IEEE Trans. Inf. Theory, 1977)

Some equivalences between Shannon entropy and Kolmogorov complexity. - Sik K. Leung-Yan-Cheong; Thomas M. Cover (IEEE Trans. Inf. Theory, 1978)

The Gaussian wire-tap channel. - Sik K. Leung-Yan-Cheong; Martin E. Hellman (IEEE Trans. Inf. Theory, 1978)

On some properties of the undetected error probability of linear codes (Corresp.). - Sik K. Leung-Yan-Cheong; Earl R. Barnes; Daniel U. Friedman (IEEE Trans. Inf. Theory, 1979)

An achievable region and outer bound for the Gaussian broadcast channel with feedback. - Lawrence H. Ozarow; Sik K. Leung-Yan-Cheong (IEEE Trans. Inf. Theory, 1984)