@book{ BA04536276, author = "Hummel, F. C. (Frederick Cornelius) and Palz, W. (Wolfgang) and Grassi, G.", title = "Biomass forestry in Europe : a strategy for the future", publisher = "Elsevier Applied Science,Sole distributor in the USA and Canada, Elsevier Science Pub. Co.", year = "1988", series = "Third EC biomass development programme", number = ". Energy from biomass ; 3", URL = "https://ci.nii.ac.jp/ncid/BA04536276" }