@article{Zubkov2024the, author={Zubkov, A.Y. and Mulin, M.O. and Shirokova, V.A.}, title={THE USE OF GEOGRAPHIC INFORMATION PROGRAMS TO CONSTRUCT A DIGITAL ELEVATION MODEL OF THE CATCHMENT AREA OF THE CHIR RIVER}, journal={International Journal of Applied Sciences and Technology Integral}, publisher={Electronic science}, year={2024}, pages={500-509}, volume={0}, issue={2}, }