Books by De Sio, Fabio 1 books by this author Found Matches | Filtered / De Sio, Clever Hand and His Effects. Karl Krall and the Origins..., 2014. De Sio, Fabio/Marazia, Chantal: Clever Hand and His Effects. Karl Krall and the Origins of Experimental Parapsychology in Germany. In: Studies in History and Philosophy of Biology & Biomedical Science /48 (2014). S. 94–102.