LEONTIEV, Denis. Crisis of the UNESCO World Heritage List. project baikal, Russian Federation, n. 28, p. 43-43, may 2011. ISSN 2309-3072. Available at: <http://www.projectbaikal.com/index.php/pb/article/view/404>. Date accessed: 10 dec. 2018. doi: https://doi.org/10.7480/projectbaikal.28.404.