Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OBARA Yoshiaki,Utilization of Stable Isotopes in Nutritional Physiology of Domestic Ruminant,RADIOISOTOPES,00338303,Japan Radioisotope Association,2007,56,7,393-401,https://cir.nii.ac.jp/crid/1390001204157145856,https://doi.org/10.3769/radioisotopes.56.393