• Judica Cordiglia Tecniche Applicate
  • The Straight Dope: Were there really "Lost Cosmonauts" stranded in space?
  • Aulis online
  • Pietro.org
  • Dr Sky
  • For those who are interested in a diametrically opposed opinion to the one expressed in the present web site, we offer a link to James Oberg's article "Phantoms of Space"
  • James Oberg returned to the issue of 'Lost Cosmonauts' in his book "Uncovering Soviet Disasters"
  • Vladimir Ilyushin's Spaceflight, by Paul Tsarinsky
  • Cosmonauts number Zero
  • Grechko's encounter