Exponential observers for nonlinear dynamic systems. William A. Porter . Data interpolation, causality structure, and system identification. On the termination of program schemas. Robert L. Cannon, Jr. .
Phrase structure grammars generating context-free languages.
On probabilistic context-free grammars that achieve capacity. Azriel Rosenfeld . A characterization of parallel thinning algorithms. Azriel Rosenfeld . A converse to the Jordan curve theorem for digital curves.