found: LC data base, 11-03-93 (hdg.: Chávez Frías, Hugo)
found: Botello, O. El golpe en Aragua, 1992: p. 43 (Comandante Hugo Chávez Frías; teniente coronel Hugo Rafael Chávez Frías, b. Sabaneta, Barinas State, Venezuela, July 28, 1954)
found: Dieterich, Heinz. Hugo Chávez, 1999: p. 5 (president of Venezuela; former military officer and prisoner)
found: Venezuela Ministerio de Relaciones Exteriores website, Dec. 31, 2001: (Chávez elected president Dec. 6, 1998, sworn in Feb. 2, 1999)
found: Dabagi͡a, Ė.S. Ugo Chaves, 2005.
found: New York times (online), viewed Mar. 7, 2013 (in obituary published Mar. 5: Hugo Chávez; b. Hugo Rafael Chávez Frías, July 28, 1954; d. Tuesday [Mar. 5, 2013], aged 58)
found: Britannica online encyclopedia, viewed Mar. 7, 2013 (Hugo Chávez, in full Hugo Rafael Chávez Frías; b. July 28, 1954, Sabaneta, Barinas, Venezuela; d. Mar. 5, 2013, Caracas; president of Venezuela, 1999-2013)
found: Spanish Wikipedia, viewed Mar. 7, 2013 (Hugo Rafael Chávez Frías, known as Hugo Chávez; b. July 28, 1954, Sabaneta; d. Mar. 5, 2013, Caracas; politician and military man; president of Venezuela, Feb. 2, 1999-Mar. 5, 2013)
found: LC database, Mar. 7, 2013 (hdg.: Chávez Frías, Hugo; usage in works by him: Hugo Chávez Frías, Hugo Rafael Chávez Frías, Hugo Chávez; usage in works about him: Hugo Chávez, Chávez)