“The Effective Method of Preparing and Chromatography-Mass Spectrometric Studies of 4(1’,3’-Dithiol-2’-ylidene)hydroquinoline-3-Thione, Hydroquino [3,4-B]-1,6,6a(λ4)tritiapentalene and 1’,3’-Dithiol-2’-Spiro-8-[thiino[2,3-C] Hydroquinoline]”. Sorbtsionnye i Khromatograficheskie Protsessy 14, no. 4 (November 19, 2019). Accessed April 3, 2026. https://journals.vsu.ru/sorpchrom/article/view/1532.