February 29, 1996: A Letter of Resignation
February 2, 1995: A Letter to Boris Nikolayevich Yeltsin (letter)
June 11, 1987: Against Loans to Chile (letter)
June 25, 1981: A Soviet Feminist (letter)
November 20, 1980: Free Selic (letter)
Violations of the Helsinki Accords, Ussr: A Report Prepared for the Helsinki Review Conference, Vienna, November 1986 (1986)