Aschenbrenner, Klaus H.
Klaus H. Aschenbrenner was born in 1932 in Germany and works as a software architect in Vienna. He is the author of two books on Atlantis in which he supports the view that a collision with an asteroid in the Atlantic around 10,500 BC caused the demise of Atlantis.
He also wrote a short paper(b) outlining his reasons for arguing against the Azores as the location of Atlantis, although he had previously supported that idea.
In 2011, he published a paper(a) entitled Gizeh und die erste Hochkultur (Giza and the first advanced civilization) in which he adds his support to the idea of a much earlier date for the Sphinx than is conventionally accepted. He associates the erosion of the Sphinx with increased acidity in rain caused by a cometary impact around 7600 BC, which has been identified by Alexander Tollmann. English readers can use their Google translator.>In an earlier paper, Giza and Abydos: The Keys to Atlantis, he speculated that the Osireion at Abydos was possibly as old as the Sphinx. Unfortunately, it was available in German only.