Joaquim Fernandes is a Portuguese historian from Porto
Univeristy who, along with Fina dArmada, research
famous apparitional incidents in Fatima (Portugal, 1917).
Having access to original sources about this event, he
came to conclusion that many aspects of Fatima incidents
resemble modern UFO incidents. He coauthored three books
on this topic: "Celestial Secrets", "Heavenly
Lights" and "Fatima Revisited"
published by Anomalist Books.