Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) ISHIKAWA Yoshio,A stem analysis based on measurement of the cross-sectional area,JOURNAL OF THE JAPANESE FORESTRY SOCIETY,0021-485X,THE JAPANESE FORESTRY SOCIETY,1987,69,10,398-400,https://cir.nii.ac.jp/crid/1390001206360602368,https://doi.org/10.11519/jjfs1953.69.10_398