[Sleep and wakefulness rhythms in the crews of Soiuz 3-9 spaceships before, during and after space flight].
D000337:Aerospace Medicine; D000513:Alpha Rhythm; D002940:Circadian Rhythm; D006801:Humans; D012890:Sleep; D013026:Space Flight; D014586:USSR; D014851:Wakefulness
Issledovanie ritmov sna i bodrstvovaniia u ékipazheĭ kosmicheskikh korableĭ Soiuz 3-9 do, vo vremia i posle vypolneniia kosmicheskogo poleta.