Saltan, N.V., O.B. Gontar, Sviatkovskaya Е.А., and E.P. Shlapak. 2015. “Estimation of Woody Introducents Heavy Metals Accumulation in Various Conditions Urbanosredy of the Kola Peninsula”. Russian Journal of Applied Ecology, no. 3 (September):36-41. https://rjae.ru/index.php/rjae/article/view/229.