One of Dyukov's spheres of interest is the history of Soviet repression, mostly in the Baltic states and Ukraine, and more recently, he has written a controversial paper downplaying the massacres at Kurapaty in Belarus. While Dyukov employs open archives such as from the State Archive of the Russian Federation (GARF) and the Russian State Archive of Contemporary History (RGANI), he also cites the archives of the FSB, to which access by researchers is limited. It is these FSB archives which Dyukov uses, for example, to claim in his recent book, "The Genocide Myth", that Estonia's recollection of Soviet repressions including deportations is exaggerated. In regard to the June 1941 deportations, that took place before German invasion of June 22, 1941, Dyukov contends that deported Estonians were mostly German collaborators or were linked to them.