Andreas Rubo, Raf Kellens, Jay Reddy, Joshua Wooten, Wolfgang Hasenpusch "Alkali Metal Cyanides" in Ullmann's Encyclopedia of Industrial Chemistry 2006 Wiley-VCH, Weinheim, Germany. DOI:10.1002/14356007.i01_i01
("Hitler put an end to his own, and the world’s, misery, with a bullet from a Walther automatic fired into his right temple on the afternoon of April 30, 1945. He simultaneously crunched a phial of
cyanide between his teeth.", Irving, 66:1983,"The Secret Diaries of Hitler's Doctor",(1983) ISBN 0-02-558250-X)