Klein, Arthur L.; Gow, Kenneth P. (1952) A dial-reading translator for digital machine inputs Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry; Vol. 71; No. 2; AIEE North Eastern District Meeting, April 30 - May 2, 1952 , Binghamton, NY

Klein, A. L. (1925) The secondary emission from a nickel surface due to slow positive ion bombardment Physical Review; Vol. 26; No. 6;