Kalashnikova , I. V., and S. V. Migalina S. V. “Influence of Habitat on Growth and Changes in Productivity Parameters of Birch Trees at the Ash Dump of Power Station”. Проблемы ботаники Южной Сибири и Монголии, Vol. 18, no. 1, June 2019, pp. 503-7, doi:10.14258/pbssm.2019105.