T. Goodeve, "Euphoric Enthusiasm," Parkett, no. 50-51, 1997, p. 94 (illustrated as a work in progress). Inket, "Schillernde Riesenblume for den Postdamer Platz," Berliner Morgenpost, 12 February 2000, p. 42 (Blue illustrated in color). C. Wedenburg, "Ufgeblasne Luftballon-Kunst aus politiertem Stahl: Jeff Koons' Balloon Flower am Postdamer Platz," Berliner Morgenpost, vol. 12, February 2000, p. 19 (Blue illustrated in color). "Interview with Jeff Koons," Art, April 2000, pp. 78-79 (Blue illustrated in color). Jeff Koons/Andy Warhol: Flowers, exh. cat., New York, November-December 2002, p. 47 (Magenta illustrated in color). Jeff Koons, exh. cat., Naples, Museo Archeologico Nazionale, 2003, pp. 88-89 (Magenta illustrated in color). C.Vogel, "Gagosian Adds to London Space," New York Times, 12 December 2003 (illustrated). R. Rosenblum, "Grounds for Reflection," House and Garden, January 2006, pp. 106-107, (Magenta illustrated in color). D. Dunlap, "Luster of World Trade Center has Tattered Reminder of 9/11," New York Times, 24 May 2006 (Red illustrated). J. Miller, "Just the Beginning," Metro, 24 May 2006, (Red illustrated in color on the cover). C. Kaplan, "Koons & McCartney [interview]," Monopol, no. 3, June/July 2006, pp. 80-88 (Blue illustrated). H. W. Holzwarth, Jeff Koons, Cologne, 2007 (pp. 9, 33, 424-425 (Red, Blue, and Magenta illustrated in color) and 2009 (pp. 9, 33, and 412-413 Red, Blue and Magenta illustrated in color). Fast Forward: Contemporary Collection for the Dallas Museum of Art, exh. cat., Dallas, 2007, pp. 262-263 (Magenta illustrated). Celebration - Jeff Koons, exh. cat., Berlin, 2008, pp. 29, 34, 132 and 166 (Magenta illustrated in color). Jeff Koons Versailles, exh. cat., Château de Versailles, October 2009, pp. 25, 26-28, 29, 132 and 166 (Yellow illustrated in color). R. Weihager, Blitzen-Benz Bang, Daimler Art Collection, Ostfildern, 2009, pp. 316-317, 329 and 331 (illustrated in color; also illustrated on the back cover).