Collaborative Phase One Plus. Architectural Record. Dec 1972, 89 Toyo Ito. GA Japan vol 3 Spring 1993, 63 Chris Dawson and Alan Stanton. Architectural Design 39 July 1969, 374 JD Leland and Co. Pencil Points 12 January 1931, 56 Philip Johnson and John Burgee. GA Document. 3 1981, 6 Ulrich Franzen. Architectural Record. Jul 1971, 116 Peter Muller-Munk. Interiors v.103 n.4 Nov 1943, 51 Peter Thomas. AA Files 13 Autumn 1986, 95 John Andrews. Architectural Review v.140 n.836 Oct 1966, 249 Wilfried Lubitz. Domus 467 September 1968, 14