Russian movies

[Laura Kline]

Dear All,
Would anyone happen to know where I could get a copy of the parallel cinema
movie "Traktory"? It came out in the late 1980s/early 1990s. It is a parody
of official Soviet films, and features two tractors who fall in love.
I am also trying to find two movies/documentaries called "Ivanov" and
"Yahha." They show Grebenshchikov and Leningrad alternative youth
respectively. They are mentioned in Artem Troitsky's book on Russian rock,
"Back in the USSR."
I would be grateful for any help.
Thank you,
Laura Kline