[1] Kelemen authored several books about art history, particularly on El Greco, and became the founding member of the Bibliophile Society of Hungary.
In Medieval American Art (1943) Kelemen called the figure a "unique statue... cut from a rather pale mottled jade [sic]... unbelievably smooth over the entire surface".
Based on Kelemen's personal diary and covering the entire period of World War I from 1914 to 1918, the book is a memoir of the experiences of a Hungarian cavalry officer of the Blue Hussars of the Imperial army of the Austro-Hungarian Monarchy.
[4] The book provides an uncommon perspective on the war as it is written by a well-educated, multi-lingual, Hungarian officer serving in multiple fronts.
The war serves as a backdrop to a man of high birth in a society struggling to adapt to the modern world.