Dokoupil, J. G., Dickhoff, W., Kugelberg, L., & Schnabel, J. (2021). Jiří Georg Dokoupil & Julian Schnabel: Two Czechoslovakians walk into a bar : collaboration paintings : Osthaus Museum Hagen, 27.06.-15.08.2021 / edited by Wilfried Dickhoff & Louise Kugelberg. wdpress.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDokoupil, Jiří G., Wilfried Dickhoff, Louise Kugelberg, और Julian Schnabel. Jiří Georg Dokoupil & Julian Schnabel: Two Czechoslovakians Walk into a Bar : Collaboration Paintings : Osthaus Museum Hagen, 27.06.-15.08.2021 / Edited by Wilfried Dickhoff & Louise Kugelberg. Berlin: wdpress, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDokoupil, Jiří G., et al. Jiří Georg Dokoupil & Julian Schnabel: Two Czechoslovakians Walk into a Bar : Collaboration Paintings : Osthaus Museum Hagen, 27.06.-15.08.2021 / Edited by Wilfried Dickhoff & Louise Kugelberg. wdpress, 2021.