sponsored by Australian Computer Society and International Federation for Information Processing. Australian Computer Society and International Federation for Information Processing. edited by V. Rajaraman ; sponsored by Computer Society of India, International Federation for Information Processing (IFIP). sponsored by American Vacuum Society and International Union of Pure and Applied Physics. sponsored by the IEEE Computer Society and the Association for Computing Machinery. sponsored by IEEE Computer Society in cooperation with Association for Computing Machinery. sponsored by IEEE Computer Society, in cooperation with Association for Computing Machinery.