Yokota, 1974. J. Japan. Soc. Grassl. Sci., 20 (1): 31-33 Document reference Yokota, M., 1974. Experiments on the palatability of dairy cattle for Russian comfrey. J. Japan. Soc. Grassl. Sci., 20 (1): 31-33Alternative title ラッシヤン・コンフリーの乳牛嗜好性に関する一実験 Web http://ci.nii.ac.jp/naid/110006464723/enCitation key Yokota, 1974Datasheets Russian comfrey (Symphytum × uplandicum)
