For citations:

Bergman I.E. EFFECT OF COPPER SMELTER EMISSIONS ON THE STEM SHAPE OF SIBERIAN SPRUCE (PICEA OBOVATA LEDEB.) AND SIBERIAN FIR (ABIES SIBIRICA LEDEB.) (PINÁCEAE, PINOPSIDA). Povolzhskiy Journal of Ecology. 2016;(1):17-28. (In Russ.) https://doi.org/10.18500/1684-7318-2016-1-17-28