@article{oai:repository.dl.itc.u-tokyo.ac.jp:00026422, author = {平田, 種男}, journal = {演習林 = Miscellaneous Information, the University of Tokyo Forests}, month = {}, note = {application/pdf}, pages = {9--14}, title = {Bitterlieh法と調和平均}, volume = {11}, year = {1956} }