Troneva, A. V., and A. I. Sibiryakova, “The Current State and Prospects for the Development of Industrial Tourism on the Example of Saint Petersburg”, Статьи, Novelty. Experiment. Traditions, 7/velty (2021), 78-84, https://ojs.owebs.ru/nxtjournal/article/view/27050, accessed 8 Nov. 2026.