Issue No. 05 - May (1974 vol. 23)
J.M. Hart , Department of Computer Science, University of Kentucky
The local adjunct languages (LAL's) and grammars have been defined so as to characterize many aspects of natural and programming languages.
Context-free languages (CFL's), Kleene star, local adjunct languages (LAL's), push-down automata (pda's), recursive generation of languages, regional adjunct languages (RAL's), regular languages.
J. Hart, "A Class of Push-Down Acceptors for Adjunct Languages," in IEEE Transactions on Computers, vol. 23, no. , pp. 449-455, 1974.