Actions for United States-Soviet research studies : hearing before the Subcommittee on European Affairs of the Committee on Foreign Relations, United States Senate, Ninety-seventh Congress, second session on S. 2919, a bill to help ensure the nation's independent factual knowledge of Soviet-bloc countries, to help maintain the national capability for advanced research and training on which that knowledge depends, and to provide partial financial support for national programs to serve both purposes, September 22, 1982