@article{oai:repository.dl.itc.u-tokyo.ac.jp:00025836, author = {HOTTA, Yuji and MAEZAWA, Kanjiro}, journal = {東京大学農学部演習林報告}, month = {}, pages = {145--157}, title = {The Error of Basal Area Effected by Method of Estimation}, volume = {46}, year = {1954} }