TY - JOUR A1 - Grenzdörffer, G. J. A1 - Niemeyer, F. T1 - UAV BASED BRDF-MEASUREMENTS OF AGRICULTURAL SURFACES WITH PFIFFIKUS JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XXXVIII-1/C22 SP - 229 EP - 234 Y1 - 2012/09/06 PB - ISPRS SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XXXVIII-1-C22/229/2011/ L1 - https://isprs-archives.copernicus.org/articles/XXXVIII-1-C22/229/2011/isprsarchives-XXXVIII-1-C22-229-2011.pdf DO - 10.5194/isprsarchives-XXXVIII-1-C22-229-2011 ER -