TY - JOUR A1 - Niederhuber, M. A1 - Brugger, S. T1 - GRAPE – GIS REPETITION USING AUDIO-VISUAL REPETITION UNITS AND ITS LEANRING EFFECTIVENESS JO - Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. J1 - ISPRS-Archives VL - XXXVIII-6/W27 SP - 45 EP - 50 Y1 - 2012/09/05 PB - ISPRS SN - 2194-9034 UR - https://isprs-archives.copernicus.org/articles/XXXVIII-6-W27/45/2011/ L1 - https://isprs-archives.copernicus.org/articles/XXXVIII-6-W27/45/2011/isprsarchives-XXXVIII-6-W27-45-2011.pdf DO - 10.5194/isprsarchives-XXXVIII-6-W27-45-2011 ER -