1. Two remarks to noiseless coding;Csiszár;Inform. Control,1967
2. On noiseless channels;Csiszár,1969
3. Information sources with different cost scales and the principle of conservation of entropy;Csiszár;Z. Wahrscheinlichkeitstheorie und Verw. Gebiete,1969
4. Some linear and some quadratic recursion formulas;De Bruijn;I. Indag. Math.,1951
5. Foundations of Information Theory;Feinstein,1958