Erman, L. D., & Lesser, V. R. (1975). A multi-level organization for problem solving using many, diverse, cooperating sources of knowledge. Department of Computer Science, Carnegie-Mellon University.
Chicago-Zitierstil (17. Ausg.)Erman, Lee D., und Victor R. Lesser. A Multi-level Organization for Problem Solving Using Many, Diverse, Cooperating Sources of Knowledge. Pittsburgh, Pa: Department of Computer Science, Carnegie-Mellon University, 1975.
MLA-Zitierstil (9. Ausg.)Erman, Lee D., und Victor R. Lesser. A Multi-level Organization for Problem Solving Using Many, Diverse, Cooperating Sources of Knowledge. Department of Computer Science, Carnegie-Mellon University, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.