Iliescu, Ionuț. 2007. “The Actions of the Espionage Group Led by Vasile Chilian (1916-1917)”. The Annals of "Dunarea De Jos" University of Galati. Fascicle XIX, History 6 (December), 65-100. https://gup.ugal.ro/ugaljournals/index.php/history/article/view/872.