L'énigme du massacre de Katyn : les preuves, la solution by
French translation of the 2019 corrected edition of "The mystery of the Katyn Massacre"
La collaborazione de L. Trotsky con Germania e Giappone, Cospirazioni di Trotsky vol. 2 by
Italian translation of: Leon Trotsky's collaboration with Germany and Japan, Trotsky's conspiracies of the 1930s, volume 2.
Тайна катынского расстрела : доказательства, решение by
Russian translation of: The mystery of the Katyn Massacre, the evidence, the solution