Sopo, E. (2009). Some breeds of Russian art collectors and their reflections on Finnish nineteenth-century collecting: Imperial Honorary Surgeon Alexander von Collan (1819-1910) and Master of Laws Alexander von Collan (1858-1939) as collectors from the "third estate".
Chicago-viite (17. p.)Sopo, Elina. Some Breeds of Russian Art Collectors and Their Reflections on Finnish Nineteenth-century Collecting: Imperial Honorary Surgeon Alexander Von Collan (1819-1910) and Master of Laws Alexander Von Collan (1858-1939) as Collectors from the "Third Estate". Jyväskylä, 2009.
MLA-viite (9. p.)Sopo, Elina. Some Breeds of Russian Art Collectors and Their Reflections on Finnish Nineteenth-century Collecting: Imperial Honorary Surgeon Alexander Von Collan (1819-1910) and Master of Laws Alexander Von Collan (1858-1939) as Collectors from the "Third Estate". 2009.