Mikhail Gorbachev: Putin absent from ex-leader's funeral
Vladimir Putin pays respects to former Soviet leader Mikhail Gorbachev but won't attend his funeral - ABC News
Thousands attend Gorbachev funeral in Moscow. President Vladimir Putin was not one of them
Death and funeral of Mikhail Gorbachev - Wikipedia
Putin pays tribute to Gorbachev but won't attend his funeral
Michael McFaul Hoover Institution
Russian President Vladimir Putin pays tribute to former soviet leader Mikhail Gorbachev but he will not attend funeral
Putin to snub Gorbachev funeral due to work schedule, Mikhail Gorbachev
Vladimir Putin won't attend Mikhail Gorbachev's funeral