Burak, K., Kovtun, V., Levytskyi, R. and Makoviichuk, M. 2019. Determining density of regular grid for creating DTM using bicubic spline interpolation. Geomatics and Environmental Engineering. 13, 2 (May 2019), 5–18. DOI:https://doi.org/10.7494/geom.2019.13.2.5.