Sherwood Pundyk, Anne (September 2011). "Cy Twombly: Sculpture". The Brooklyn Rail. Archived from the original on March 14, 2012. Retrieved March 13, 2012.
Sherwood Pundyk, Anne (September 2011). "Cy Twombly: Sculpture". The Brooklyn Rail. Archived from the original on March 14, 2012. Retrieved March 13, 2012.