"collapse of communism in the 1990s" . "liberalisation period of the 1990s" . "overthrow" . . "democratic revolution" . "fall" . "end of communist rule in 1990" . . . "collapsed" . "peaceful Democratic Revolution" . "democratic revolution in 1990" . . . "collapse of the Communist regime in Mongolia" . "revolutionary" . "Mongolian Democratic Revolution" . . "early-1990" . . . "transition to democracy and market economy in 1990" . "Mongolia's transition to democracy and a market economy" . "democracy in 1990" . "fall of communist rule in Mongolia in 1990" . "1990 overthrow of communism" . "Democratic Revolution of 1990" . . "Revolution of 1990" . "1990 democratic revolution" . . . "third Mongolian revolution" . "Mongolia" . "democratisation in 1990" . "Mongolian Revolution of 1990" . "Mongolian Revolution of 1990" . "1990 Democratic Revolution" . "the new State of Mongolia" . "democratization" . . . "Mongolian Revolution" . . .