No Russian equivalent of the KGB archive is available.

However, because of the possibility of personal reprisals, KGB archives would not be opened.

From the KGB archives, new details on the recruiting of Philby et al.

While most of the KGB archives remain classified, two on-line documentary sources are available.

The church was closed by the Soviets in 1934 and was adapted for accommodation of a KGB archive.

He advised in an official note still classified as "secret" that a démarche be issued to seek facts from the KGB archives.

However, KGB archives indicate that in 1957 Burchett was receiving monetary compensation for his services.

There is at least one receipt signed by Gus Hall in the KGB archives.

Its content became known only after the declaration of independence in 1990 and opening up of secret KGB archives.

The best way to see how they are organised would be to examine the KGB archives.