Information Theory, Statistical Decision Functions, Random Processes.: Transactions of the First Prague Conference held in 1956. Edited by Antonin Spacek. Publishing House of the Czechoslovak Academy of Sciences, 1957. 354 pp.Transactions of the Second Prague Conference, held in 1959. Edited by Antonin Spacek. Publishing House of the Czechoslovak Academy of Sciences, 1960. 843 pp.Distributed by Academic Press, New York and London.