Wick, Oliver. “Mark Rothko and Barnett Newman: The Sublime Is Now!” In Mark Rothko and Barnett Newman, edited by Oliver Wick. Fondation Beyeler, Basel, Switzerland, 2007: 5–9.

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.