Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAKAZAWA Masahiko and IMATOMI Yuki and OKA Masaru and TANAKA Yoshiaki and YOSHIDA Chikashi and UEMURA Takumi and YAMAGUCHI Hirokazu and KONDO Koji and TAKAHASHI Masahiro and FUJII Yoshito,Development of thinning system using excavator with long-reach grapple : Effects of conditions on prehauling productivity(Challenge to systematized forestry),Journal of The Japan Forest Engineering Society,13423134,The Japan Forest Engineering Society,2010,25,1,15-22,https://cir.nii.ac.jp/crid/1390001204465664512,https://doi.org/10.18945/jjfes.kj00006204007