Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) AKIYAMA Minoru and SATO Hiroshi P. and KOARAI Mamoru and HOMMA Shinichi,Evaluation of avalanche risk map and its improvement using actual avalanche distribution,Journal of the Japan society of photogrammetry and remote sensing,02855844,Japan Society of Photogrammetry and Remote Sensing,2007,46,2,4-16,https://cir.nii.ac.jp/crid/1390001204077490432,https://doi.org/10.4287/jsprs.46.2_4