London, 18 April 1980 - Institutional correspondence Nicholas Serota's letter to Roland Penrose, dated 18 April 1980
London, 1 May 1980 - Institutional correspondence Nicholas Serota's letter to Roland Penrose, dated 1 May 1980
<em>October</em>, no. 110, Cambridge (MA): The MIT Press (autumn, 2004): 3–22 - Essay “An Archival Impulse”