String Adjunct Grammars: I. Local and Distributed Adjunction - Aravind K. Joshi; S. Rao Kosaraju; H. M. Yamada (Inf. Control., 1972)

String Adjunct Grammars: II. Equational Representation, Null Symbols, and Linguistic Relevance - Aravind K. Joshi; S. Rao Kosaraju; H. M. Yamada (Inf. Control., 1972)