J. D. Ullman

Twentieth annual ACM symposium on theory of computing : selected papers, May 2-4, 1988

J. D. Ullman, 1991, STOC 1991.

Best Conditioned Parametric Identification of Transfer Function Models in the Frequency Domain

J. D. Ullman, J. E. Hopcroft, J. Hopcroft, 1995 .

A formal approach to code optimization

Alfred V. Aho, Ravi Sethi, J. D. Ullman, 1970 .