With Mikhail Gorbachev's introduction of glasnost and perestroika, public demonstrations became more common. The protesters called for Mongolia to adopt perestroika and glasnost. The policies of perestroika and glasnost saw a loosening of the censorship of earlier eras. Gorbachev was broadly supportive, describing glasnost as "the crucial, irreplaceable weapon of perestroika". He also initiated the policies of "glasnost" (openness) and "perestroika" (economic restructuring). The biggest weapons used during Perestroika was Glasnost as a Political Weapon. President Gorbachev, who deserves great credit for reform, perestroika and openness, glasnost, stepped aside. These were encapsulated in two policies&colon; "[[perestroika]]" and "[[glasnost]]". He supported the "perestroika", the reforms of Mikhail Gorbachev. Gorbachev recurrently employed the term "perestroika", first used publicly in March 1984. Another wave of rehabilitations started about 1986 with emerging Soviet policy of "perestroika". This led to a Bulgarian version of the Soviet perestroika program. As changes occurred, skepticism over "perestroika" and privatisation was not limited to high-level government officialdom. In 1995 his foundation held a conference on "The Intelligentsia and Perestroika". The rock music situation changed during the perestroika era.