@article{Petrin2023simple,
author={Petrin, R.D.},
title={Simple asymmetry indicators tested in natural even-aged Scots pine (Pinus sylvestris L.) stands in Bulgaria},
journal={Forestry Engineering Journal},
publisher={FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov},
year={2023},
pages={41-55},
volume={13},
issue={3},
}