PAVLOV, Vladimir. Objects. project baikal, Russian Federation, n. 26, p. 32-129, dec. 2010. ISSN 2309-3072. Available at: <http://projectbaikal.com/index.php/pb/article/view/155>. Date accessed: 18 july 2019. doi: https://doi.org/10.7480/projectbaikal.26.155.