Frank, Susan Behrends. American Art 1850–1960: Capolavori dalla Phillips Collection di Washington. Museo di arte moderna e contemporanea di Trento e Rovereto, Rovereto, Italy, 2010.

Mark Rothko: Works on Paper will ultimately document approximately 2,600 works from public and private collections worldwide. Cataloging is ongoing, and works and information will be added to the site during the coming years.