Louise Bourgeois, Cell (Eyes and Mirrors), 1989–93, Steel, limestone and glass, Tate, London. https://dartabase.art/cite/tate/T06899 Robert Motherwell, 18 October 1987 Sketchbook #4, 1987, Conté crayon on plastic sheet, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37656 Louise Bourgeois, Hold Up, 1989, Suspender sewn on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35025 Robert Motherwell, 18 October 1987 Sketchbook #16, 1987, Conté crayon on plastic sheet, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37667 Robert Motherwell, 18 October 1987 Sketchbook #22, 1987, Conté crayon on plastic sheet, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37678 Robert Motherwell, 18 October 1987 Sketchbook #13, 1987, Conté crayon on plastic sheet, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37664 Robert Motherwell, 18 October 1987 Sketchbook #17, 1987, Conté crayon on plastic sheet, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37670 Robert Motherwell, 18 October 1987 Sketchbook #20, 1987, Conté crayon on plastic sheet, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37676 Robert Motherwell, 18 October 1987 Sketchbook #7, 1987, Conté crayon on plastic sheet, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37660 Louise Nevelson, Unbound plate from Nevelson's World, 1983, Screenprint, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/18247 Robert Motherwell, 18 October 1987 Sketchbook #25, 1987, Conté crayon on plastic sheet, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37679 Robert Motherwell, The Red and Black #51, 1987, Torn-and-pasted printed paper and handwritten music on printed paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37697 Robert Motherwell, 18 October 1987 Sketchbook #18, 1987, Conté crayon on plastic sheet, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37673 Louise Bourgeois, [Untitled], 1989, Ink, charcoal, and crayon on burned paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35104