Information and entropy of countable measurable partitions. I Minaketan Behara, Prem Nath (1974) Kybernetika
Information and Probability: Collectors and Shannon Compositivity. Bruno Forte, Darwin Poritz (1973/1974) Jahresbericht der Deutschen Mathematiker-Vereinigung
Iteration groups generated by C n functions George Blanton, John A. Baker (1982) Archivum Mathematicum