Apport_200703
BFOI Limited anser sig ha en vetenskaplig förklaring på det paranormala problemet med apporter.
Phenomena-of-Materialisation-A-Contribution-to-the-Investigation-of-Mediumistic-Teleplastics-1923
Phenomena of Materialisation, a book by German physician and psychic researcher Baron von Schrenck-Notzing which focuses on a series of séances witnessed between the years 1909 and 1913.