Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
Akao Kenichi,2. Study of Forest Management Model Based on Portfolio Theory (Symposium of the Nishi-Nippon Forest Economics Research Society (1987)),FOREST ECONOMY,03888614,FOREST ECONOMIC RESEARCH INSTITUTE,1987,40,12,23-27,https://cir.nii.ac.jp/crid/1390001205027047680,https://doi.org/10.19013/rinrin.40.12_23