Boyko, I., Didenko, I., Usoltseva, O., Ponomarenko, V., & Dzhus, L.
(2024).
Biomorphological features of Helleborus purpurascens Waldst. et Kit..
Biological Systems: Theory and Innovation,
15(2),
51-59.
https://doi.org/10.31548/biologiya15(2).2024.005