This book, first published in 1991, is the cumulative result of a long period of research by qualified experts in an attempt to analyse the legal and scientific problems of arriving at definitions in the task of preventing an arms race in outer space.

1. Introduction Bhupendra Jasani 2. Boundaries in Space Caesar Voute 3. The Legal Aspects of Peaceful and Non-Peaceful Uses of Outer Space Ivan A. Vlasic 4. Technical Aspects of Peaceful and Non-Peaceful Uses of Space Isabelle Sourbes and Yves Boyer 5. Problems of Definition: A View of an Emerging Space Power S. Chandrashekar 6. Technical Demarcations for ASAT and BMD Systems Ashton B. Carter, Donald L. Hafner and Thomas H. Johnson 7. Problems of Distinguishing ATBM/Air Defence Systems from Space Weapons Hubertus M. Feigl 8. The Problem of Non-Dedicated Space Weapons Systems Paul B. Stares 9. Definition of Components, Laboratory Testing and Testing in an ABM and ASAT Mode Stanislav N. Rodionov