Abriha, Dávid, Zoltán Kovács, Sarawut Ninsawat, László Bertalan, Boglárka Balázs, and Szilárd Szabó. 2018. “Identification of Roofing Materials With Discriminant Function Analysis and Random Forest Classifiers on Pan-Sharpened WorldView-2 Imagery – a Comparison”. Hungarian Geographical Bulletin 67 (4), 375-92. https://doi.org/10.15201/hungeobull.67.4.6.