C. T. Ng Representation for Measures of Information with the Branching Property [Citation Graph (0, 0)][DBLP] Information and Control, 1974, v:25, n:1, pp:45-56 [Journal]
Johnson M. Hart Acceptors for the Derivation Languages of Phrase-Structure Grammars [Citation Graph (0, 0)][DBLP] Information and Control, 1974, v:25, n:1, pp:75-92 [Journal]