Part 1 Epistemology: knowing in self-regulating organisms - a constructivist approach, E.Von Glaserfield; conceptual difficulties involved in relations between the United States and the USSR, S.Umpleby. Part 2 Methodology: on some new lines of research in cybernetics and system modelling, O.A.Kossov; logic in artificial intelligence systems, D.A.Pospelov. Part 3 Management: managing complexity in the systems age - a Renaissance systems perspective, W.J.Reckmeyer; the systems approach to international relations - a comparison of US and Soviet models, B.J.Allyn.