1. Petri nets;Peterson;ACM Comput. Surv.,1977
2. Modern Production/Operations Management;Buffa,1983
3. Microeconomic Theory: A Mathematical Approach;Henderson,1980
4. Metalogic: An Introduction to the Metatheory of Standard First Order Logic;Hunter,1971
5. Predicate logic as programming language;Kowalski,1974