Conference Support: Advances in System Theory Symposium. To be held October, 15-16, l999, in Cambridge, Massachusetts

系统理论进展（AST）是一个技术研讨会，将于1999年10月15日至16日在美国马萨诸塞州剑桥的皇家索内斯塔酒店举行。它的主题是系统和控制。这次科学会议将为研究人员提供一个极好的机会：a)评估过去的成就，b)讨论最近的趋势，c)促进新的想法。欢迎每个人参加研讨会，并将特别注意鼓励来自波士顿地区学校的研究生参加和出席。

Advances in Systems Theory (AST) is a technical Symposium which will be held October 15-16, 1999, at the Royal Sonesta Hotel in Cambridge, Massachusetts, USA. It is focused on the theme of systems and control. This scientific meeting will provide an excellent opportunity for researchers to: a) evaluate past accomplishements, b) discuss recent trends and c) promote new ideas. Everyone is welcomed to take part in the Symposium and special care wil be taken to encourage the participation and attendance of graduate students from Boston area schools.