Weiss, Jeffrey. “L’espace inconnu de Rothko.” In Mark Rothko, by Jeffrey Weiss et al. Musée d’art moderne de la ville de Paris, Paris, 1999: 59–74.

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.