Title: Gorbachev, Ligachev, Elʹtsin
Subjects: Politics and government, Perestroika, Perestroĭka
Places: Soviet Union
People: Mikhail Sergeevich Gorbachev (1931-), E. K. Ligachev, Boris Nikolayevich Yeltsin (1931-2007)
Time periods: 1985-1991