Bonn, 16 February 1956 - Institutional correspondence Antonio Mª Aguirre's letter to Alberto Martín-Artajo Álvarez
Mexico City, 21 April 1944 - Institutional correspondence A letter from Luis de Zulueta to Jorge Enciso
<em>The New York Times</em>, New York, July 31, 2006 - Article “Israel Suspending Lebanon Air Raids After Dozens Die”