Quasi-questionnaires, codes and Huffman's length. - Claude-François Picard (Kybernetika, 1970)

Chronique sur la théorie de l'information. - Claude-François Picard (RAIRO Theor. Informatics Appl., 1978)

Functional equations and information measures with preference. - Nand Lal Aggarwal; Claude-François Picard (Kybernetika, 1978)