R2: a natural language question-answering system. - Kenneth Biss; Robert T. Chien; Fred A. Stahl (AFIPS Spring Joint Computing Conference, 1971)

New directions in legal information processing. - Robert T. Chien; Peter B. Maggs; Fred A. Stahl (AFIPS Spring Joint Computing Conference, 1972)

A data structure for cognitive information retrieval. - Kenneth Biss; Robert T. Chien; Fred A. Stahl (Int. J. Parallel Program., 1972)

A homophonic cipher for computational cryptography. - Fred A. Stahl (AFIPS National Computer Conference, 1973)

On Computational Security - Fred A. Stahl (1974)

The application of cryptography for data base security. - Ehud Gudes; Harvey S. Koch; Fred A. Stahl (AFIPS National Computer Conference, 1976)

Semantic Modeling for Deductive Question-Answering. - Kenneth Biss; Robert T. Chien; Fred A. Stahl; Steven J. Weissman (IEEE Trans. Computers, 1976)

Security in a Multi-Level Structured Model of a Data Base. - Ehud Gudes; Harvey S. Koch; Fred A. Stahl (Comput. J., 1979)