Spanke, D. (2007). Jorma Puranen: Imaginary Homecomming 1991 - 1997 ; Language is a Foreign Country 1998 - 2001 ; Shadows, reflections and all that sort of thing 1997 - 2005 ; Travels on canvas 2002 - 2006 ; Icy Prospects 2005 -. Galerie Blickensdorff.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpanke, Daniel. Jorma Puranen: Imaginary Homecomming 1991 - 1997 ; Language Is a Foreign Country 1998 - 2001 ; Shadows, Reflections and All That Sort of Thing 1997 - 2005 ; Travels on Canvas 2002 - 2006 ; Icy Prospects 2005 -. Berlin: Galerie Blickensdorff, 2007.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpanke, Daniel. Jorma Puranen: Imaginary Homecomming 1991 - 1997 ; Language Is a Foreign Country 1998 - 2001 ; Shadows, Reflections and All That Sort of Thing 1997 - 2005 ; Travels on Canvas 2002 - 2006 ; Icy Prospects 2005 -. Galerie Blickensdorff, 2007.