Tajne iščezlih civilizacija

Arka - Čudesni svijet na granici nauke #57, 1990/III

Arka - Čudesni svijet na granici nauke #45, 1989/X

Kraj vremena: Revizija proročanstva Maya

British author Adrian Gilbert (co-author of The Mayan Prophecies from 1995) in The End of Time offers the most thorough and sober modern interpretation of the Mayan calendar and the so-called "2012 prophecy", completely rejecting New Age hysteria.

Prije faraona: Tajanstvena pretpovijest Egipta

American researcher Edward Malkowski claims in his book Before the Pharaohs that Egyptian civilization is the successor to a much older, more technologically advanced culture that existed at least 10–12 thousand years before the dynastic period.

Arka - Čudesni svijet na granici nauke #114, 1991/XI

Ciklus svemirskih katastrofa: Potopi, požari i skapavanja u povijesti civilizacije

The book is the most readable and complete overview of the evidence that human civilization has already been nearly wiped out of the universe once – and that such cycles may repeat themselves every few tens of thousands of years.