1. On Shannon's inequality, optimal coding, and characterizations of Shannon's and Rényi's entropies (Convegno Informatica Teoretica, Ist. Naz. Alta Mat., Roma 1973);Aczél,1975
2. “Keeping the Expert Honest” Revisited—or: A method to prove the differentiability of solutions of functional inequalities;Aczél;Selecta Statistica Canadiana,1974
3. On Measures of Information and Their Characterizations;Aczél,1975
4. A mixed theory of information, I. Symmetric, recursive and measurable entropies of randomized systems of events;Aczél;Rev. Française Automat. Inform. Recherche Opérationnelle; Informat. Théor.,1978
5. On the characterization of Shannon's entropy by Shannon's inequality;Aczél;J. Austral. Math. Soc.,1973