Skidmore Owings Merrill. Architectural Review v.162 n.968 Oct 1977, 236 Franco Purini. AA Files 8 January 1985, 102 Morphosis. AA Files 14 Spring 1987, 15 Douglas Darden. A+U 245 February 1991, 55 Oscar Niemeyer. Modulo. 39 1965, 27 Frei Otto. Architectural Review v.158 n.945 Nov 1975, 255 Hasegawa Atelier. l'Arca 67 January 1993, 53 Ballinger Tom. Architectural Record 112 July 1952, 176 Gunther Domenig. A+U 254 Nov 1991, 46 John Portman. Architectural Record. Nov 1974, 35