Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 田中 俊弘,Relation between Leaf Age and Geraniin Content of Geranium nepalense and G. thunbergii,生薬学雑誌 = The Japanese journal of pharmacognosy,00374377,東京 : 日本生薬学会,1988-03,42,1,p48-50,https://cir.nii.ac.jp/crid/1520009407236667008,