Osborn, Robert. “Calder’s International Monuments.” Art in America, vol. 57, no. 2 (March–April 1969).
MagazineCalder completes the motorized, monumental sculpture The Whirling Ear, a commission made for the pool in front of the United States Pavilion at the Brussels Universal and International Exhibition. The sculpture was made by Calder at Gowans-Knight in Watertown,
Connecticut.