Livtsov В. А. and Demidov А. Г., “Livtsov V.A. Demidov A.G. The impact of the voluntary assistant restorers movement on the conservation of historical and cultural heritage in Russia: DOI:10.22394/2225-8272-2023-12-1-55-63 EDN: TDIILS ”, Вестник ГМУ, vol. 12, no. 1, pp. 55–63, May 2023.