21
Original archive entry. The text, images and links below are kept as they were written.
Semenov, Yuri P Editor, Raketno-kosmicheskaya korporatsiya 'Energia' imeni S P Koroleva, Moscow, Russia, 1996.
Russian in-house history of the Energia Corporation and its predecessors. Unprecedented detail, photographs, designations, and drawings, on the products of Korolev's OKB.