Natural resource management in the engineering protection of puppet theater structures from external impactsSvetlana Sazonova, Sergey Nikolenko, Olga Kutsygina, Viktor Pertsev, Sergey Kozodaev, Lilia Zvyagina and Lyudmila SafonovaE3S Web Conf., 371 (2023) 05005DOI: https://doi.org/10.1051/e3sconf/202337105005