Letter from Thomas Gold to Mr Alan Campbell, Section on USSR and Eastern Europe, Commission on International Relations, National Academy of Sciences, 2101 Constitution Avenue, Washington DC States this is to inform him that they are very happy to expect Dr Vladimir Matas for a six-month stay. They have areas of mutual interests and expect his stay to be scientifically rewarding. They will provide office space, and the facilities of their Center will be available to him. 20 August 1974