Until 1997 it was believed, wrongly, that the author of the Bate & Cīa photographs was Esteban García. The identity of the real author was discovered by Alberto del Pino Menck ("Javier López, fotógrafo de Bate y Cía. en la Guerra del Paraguay", Boletín Histórico del Ejército 294–297, 1997). See also Cuarterolo, Miguel Angel (2004). "Images of War: Photographers and Sketch Artists of the Triple Alliance Conflict". In Kraay, Hendrik; Whigham, Thomas L. (eds.). I Die with My Country: Perspectives on the Paraguayan War, 1864–1870. University of Nebraska Press. pp. 154–178. ISBN0-8032-2762-0.
Mauricio Bruno, Fotografía Militar, in Fotografía en Uruguay: historia y usos sociales 1840–1930, (2011, Montevideo), Centro Municipal de Fotografía, ISBN9789974600751; accessed online [1], 21 May 2015.
Gernsheim, Helmut; Gernsheim, Alison (1954). Roger Fenton, photographer of the Crimean War. London: Secker & Warburg. pp. 13–17. OCLC250629696.
The valley, called the "North Valley" by the British military, was just less than a mile wide and about a mile and a quarter long: Woodham-Smith, Cecil (1953). The Reason Why. London: John Constable. p. 238. OCLC504665313.
