Tuchman, Maurice, Jodi Freeman, Carel Blotkamp, et al. The Spiritual in Art: Abstract Painting 1890–1985. Los Angeles County Museum of Art, Los Angeles, CA, 1986.

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.