For citations:

Steshin I.S., Petukhov I.V. Unsupervised machine learning based on vegetation indices and reflectance spectra for tree classification. Izvestia Sankt-Peterburgskoj lesotehniceskoj akademii. 2025;(255):89-102. (In Russ.) https://doi.org/10.21266/2079-4304.2025.255.89-102