Sidney Gordin. Arts and Architecture. Aug 1954, 13 Coop Himmelblau. Architectural Design v.61 n.92 1991, 26 Wagner+Webb. A+U 261 June 1992, 42 Manolo Numez-Yanowsky. GA Document. 8 1983, 134 Frei Otto. Casabella 301 1966, 35 Jeremiah Schmidt. Pencil Points 12 March 1931, 224 O. M. Ungers. Architectural Design v.61 n.92 1991, 92 Paolo Soleri. l'Arca 77 December 1993, 31 Juha Leiviska. A+U 250 Jul 1991, 100 Juan Jose Diaz Infante N. Calli. 25 1967, 54