TY - JOUR A1 - Hakala, T. A1 - Honkavaara, E. A1 - Saari, H. A1 - Mäkynen, J. A1 - Kaivosoja, J. A1 - Pesonen, L. A1 - Pölönen, I. T1 - SPECTRAL IMAGING FROM UAVS UNDER VARYING ILLUMINATION CONDITIONS JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XL-1/W2 SP - 189 EP - 194 Y1 - 2013/08/16 PB - Copernicus Publications SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XL-1-W2/189/2013/ L1 - https://isprs-archives.copernicus.org/articles/XL-1-W2/189/2013/isprsarchives-XL-1-W2-189-2013.pdf DO - 10.5194/isprsarchives-XL-1-W2-189-2013 ER -