David B. Benson. The algebra of derivations and a semithue parser. In Solomon L. Pollack, Thomas R. Dines, Ward C. Sangren, Norman R. Nielsen, William G. Gerkin, Alfred E. Corduan, Len Nowak, James L. Mueller, Joseph Horner III, Pasteur S. T. Yuen, Jeffery Stein, Margaret M. Mueller, editors, Proceedings of the 24th national conference, ACM 1969, USA, 1969. pages 1-9, ACM, 1969. [doi]
Abstract is missing.