Roxbury, 22 November 1955 - Institutional correspondence Alexander Calder's letter to Willem Sandberg, dated 22 November 1955
Roxbury, 12 January 1956 - Institutional correspondence Alexander Calder's letter to Willem Sandberg, dated 12 January 1956
<em>The New York Times</em>, New York, July 31, 2006 - Article “Israel Suspending Lebanon Air Raids After Dozens Die”