@article{oai:kochi.repo.nii.ac.jp:00005178, author = {中山, 義雄 and 吉開, 泰夫}, issue = {16}, journal = {高知大学学術研究報告 農学編}, month = {}, note = {application/pdf}, pages = {155--166}, title = {振動法によるスギ節材の曲げ破壊係数の推定}, volume = {23}, year = {1974} }