1. Valence and precedence in APL extensions
2. Brown James "The Principles of APL2 " IBM Santa Teresa Technical Report TR 03.247 March 1984. Brown James "The Principles of APL2 " IBM Santa Teresa Technical Report TR 03.247 March 1984.
3. Brown James "A Generalization of APL " Doctoral Thesis 1971 Dept. of Computing and Information Science Syracuse University New York Clearing House 74h004942 AD-770488 Brown James "A Generalization of APL " Doctoral Thesis 1971 Dept. of Computing and Information Science Syracuse University New York Clearing House 74h004942 AD-770488