found: Purinton, E. E. Pétain, the prepared, 1917.
found: La guerre moderne, 1935:t.p. (préface de M. le Maréchal Pétain)
found: Cours d'infanterie enseigné à l'École supérieure de guerre (1911), 2010?:t.p. (colonel Pétain)
found: Wikipedia, viewed 20 December 2013:under Philippe Pétain (Henri Philippe Benoni Omer Joseph Pétain, born 24 April 1856, died 23 July 1951, generally known as Philippe Pétain; French general who reached the distinction of Marshal of France, and was later Chief of State of Vichy France from 1940 to 1944)