On Characterizing the Shannon Entropy without Assuming Symmetry - Prem Nath; Man Mohan Kaur (Inf. Control., 1980)

Cyclic symmetry and the Shannon entropy. - Prem Nath; Man Mohan Kaur (Inf. Sci., 1981)

Symmetry and the Shannon entropy. - Prem Nath; Man Mohan Kaur (Inf. Sci., 1981)

On Some Characterizations of the Shannon Entropy Using Extreme Symmetry and Block Symmetry - Prem Nath; Man Mohan Kaur (Inf. Control., 1982)