Honnef, K. The subversive power of art: Gottfried Helnwein - a concept artist before the turn of the millennium. Gottfried Helnwein : [the works presented in this book were included in a large retrospective in the State Russian Museum, St. Petersburg in 1997].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Honnef, Klaus. "The Subversive Power of Art: Gottfried Helnwein - a Concept Artist Before the Turn of the Millennium." Gottfried Helnwein : [the Works Presented in This Book Were Included in a Large Retrospective in the State Russian Museum, St. Petersburg in 1997] .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Honnef, Klaus. "The Subversive Power of Art: Gottfried Helnwein - a Concept Artist Before the Turn of the Millennium." Gottfried Helnwein : [the Works Presented in This Book Were Included in a Large Retrospective in the State Russian Museum, St. Petersburg in 1997], .