Interviewer: And so how did they coordinate their work? If they were collaborating on the same project, and each institute had a very narrow and specific task?
G.N. Lepeshkin: The leadership was in Moscow, and it determined when each organization would do its work. All these questions were approved in advance, and a field work plan was drawn up, which would then be implemented...
This was communicated by special mail.
Paperno: Mail that was sent, or...
Lepeshkin: The documents, there was a secret mail service. The documents were sent...
there was a special secret mail service that transported documents according to special requirements. That was one channel. Then working meetings would be arranged at which the details would be discussed.