TY - JOUR A1 - Fister, W. A1 - Goldman, N. A1 - Mayer, M. A1 - Suter, M. A1 - Kuhn, N. J. T1 - Testing of photogrammetry for differentiation of soil organic carbon and biochar in sandy substrates JO - Geogr. Helv. J1 - GH VL - 74 IS - 1 SP - 81 EP - 91 Y1 - 2019/03/15 PB - Copernicus Publications SN - 2194-8798 UR - https://gh.copernicus.org/articles/74/81/2019/ L1 - https://gh.copernicus.org/articles/74/81/2019/gh-74-81-2019.pdf DO - 10.5194/gh-74-81-2019 ER -