New Yorker Magazine October 9th, 2009 (The Secret Cycle)
Time Journal Justin Fox wrote that Armstrong’s mannequin “made a number of eerily on-the-mark calls utilizing a formulation primarily based on the mathematical fixed pi.” (Pg 30; Nov. 30, 2009).
Bloomberg Network Newsletter – December 4, 1997
The Wall Street Journal – April 19, 1995
Investor’s Business Daily – December 3, 1991
International Herald Tribune – September 9, 1985
The Wall Street Journal – June 27, 1983
Asian Wall Street Journal – May 7, 1998
South China Morning Post – May 7, 1998
The NIKKEI Financial Daily – March 9 , 1998
Kabushiki Shinbun- November 25, 1997
Kabushiki Shinbun – November 21, 1997
The Kabushiki Shijo Shinbun – November 20, 1997
The Nikkei Financial Daily – November 10,1997
Kabushiki Shinbun – March 12, 1997
Kabushiki Shinbun – March 11, 1997
Kabushiki Shinbun – February 27, 1997
Kabushiki Shinbun – February 24, 1997
Kabushiki Shinbun – February 10, 1997
Kabushiki Shinbun – January 10, 1997
Kabushiki Shinbun – January 9, 1997
Business Times – November 2, 1996
The Weekly Toyo-Keizai – October 19, 1996
Kabushiki Shinbun – October 9, 1996
The Weekly Toyo-Keizai – August 5, 1995
Nikkei Business – April 10, 1995
Nikkei Business – February 27, 1995
Kabushiki Shinbun – February 10, 1995
Kabushiki Shinbun – February 6, 1995
Nikkei Business – December 13, 1994
The Weekly Toyo-Keizai – November 19, 1994
The Nikkei Financial Daily – May 25, 1994
The Australian – June 30, 1989
Equity – January/February 1990
FOREX and Global Markets – Winter 1997
The London Financial News – April 21, 1997
The European – July 17, 1996
Wirtschafts Woche – May 30, 1996