Willem de Kooning and Colleagues: Technical Investigation and the Challenge of Preserving Modern Art 

Susan Lake's (Hirshhorn Museum) presentation at "Abstract Expressionism: Time, Intention, Conservation, and Meaning" symposium at the Getty Center in Los Angeles, presented by the Clyfford Still Museum Research Center and The Getty Conservation Institute, on November 12, 2015.
More information at clyffordstillmuseum.org/gettysymposium