Professor Paolo Debertolis (Italy) and sound engineer Heikki Savolainen (Finland) presented their scientific results on detected mechanical vibrations and GPR screening during the Second International Scientific Conference on Bosnian Valley of the Pyramids.
Ultrasounds:
http://www.youtube.com/watch?v=pg7z4FW7pQk part one
http://www.youtube.com/watch?v=9UUdIFIc39Y part two
GPR and underground structure in Ravne’s Labyrinth:
http://www.youtube.com/watch?v=FbAH_HJm-tc






