W1974 Leningrad Aeroflot Il-18 crash
W1974 Soviet nuclear tests
W1974 Surgut mid-air collision
WGambell incident
WKosmos 690
WBulldozer Exhibition
WKosmos 638
WKosmos 672
WLuna 23
WSalyut 3
WSalyut 4
WSoyuz 14
WSoyuz 15
WSoyuz 16
WVladivostok Summit Meeting on Arms Control