Pásztor, László, et al. “Spatial Distribution of Selected Soil Features in Hajdú-Bihar County Represented by Digital Soil Maps”. Acta Geographica Debrecina Landscape & Environment Series, vol. 10, no. 3-4, Sept. 2016, pp. 203-1, https://doi.org/10.21120/LE/10/3-4/14.